The hacks are pretty hardcore, and demand not just a jailbroken iPhone, but a working knowledge of the handset's operating system internals. Basically, I wouldn't recommend anyone who enjoys having a not-bricked iPhone try either one. Anyway! The former comes by way of the Hackint0sh forums, courtesy of user Whiterat:

1. Backup original CommCenter (goes without saying...)
2. Replace CommCenter in: /System/Library/PrivateFrameworks/CoreTelephony.framework/Support/ with a patched one.
3. Chmod the new CommCenter to 755
4. Open /System/Library/CoreServices/SpringBoard.app/M68AP.plist and insert a true boolean value for "mms" under capabilities

and the latter, from the Dev Team Wiki, step-ified by The Beat Mix (the instructions are too long to include here; just check them out at the link).

If they're soooooo dangerous, then why even mention them? Because in their respective forums, the chatter around the hacks is that they'll make their way to the Cydia jailbreak app store before too long, and both be installable with little more than a tap. [MuscleNerd's Twitter via 9to5Mac]

SenseMe is sort of like Apple's Genius playlists, though hopefully it works a little better. Using Sony's MediaGo PC software, your tracks are passed through a 12 tone analysis, and automatically sorted into 12 channels like "Relax" or "Newly Added".

The MediaGo software has also been updated. Version 1.2 adds an iTunes-esque front-end to the PlayStation Store, which is clearly a must given that converting old UMDs for the PSPGo is a no-go. [PlayStation Blog via Kotaku]

The pre-release version is available now in English and multilingual versions for those anxious to give it a spin. As always, make sure you have a plan that supports tethering so you don't accidentally run up an outrageous data bill. [The BlackBerry Ninja via IntoMobile]

Other than this, there are a number of fixes that you can head over to the developer site to check out.

UPDATE: Reports are coming in that, predictably, some of the simpler tethering tricks no longer work.

UPDATE 2: A few more features have come to light, including new accessibility options (VoiceOver and high contrast mode can be toggled with three clicks on the home button), as well as new video saving and editing buttons. [iPhone Dev]

http://help.benm.at/help.php

Then scroll down to the Tethering & Internet Settings, then choosing your country and provider. This works for both AT&T and T-Mobile, and will let you install the appropriate configuration.

Now go to your settings and enable tethering. Check the video walkthrough above to help you configure tethering.

We've been testing this for about a day and it's been working quite well. Just be careful though, that AT&T doesn't officially sponsor this and might charge you extra for using tethering while you're not supposed to. So, keep an eye out so you're not shafted at the end of the month.

And if this disables visual voicemail on your phone, just go and reset your network settings, and it should be fixed. If that doesn't work, try updating your phone with an older version of the AT&T carrier settings.

The method is an update of what we showed before, but with a method to get MMS and Visual Voicemail working.

But first! Some words from our lawyers my conscience: These are, no matter how you cut it, not sanctioned. That means they could screw with your phone's brains, and more likely, with your delicate relationship with AT&T. If you're not particularly intrepid when it comes to technology, your warranty and, uhh, contract law, you should probably just wait it out.

Our first method comes from Giz reader Aaron Krill, who has posted a comprehensive guide—a sort of super-powered update to our old 3.0 tethering hack—to enabling both tethering and MMS specifically on AT&T. It's not the simplest procedure, but it's approachable, and doesn't require jailbreaking like before. The gist:

• Enable IPCC updates on iTunes 8.2
• Update IPCC files
• Spoof AT&T's website into thinking you have an other phone

If MMS doesn't really matter to you (be honest!) you can try this simpler, tethering-only method that allegedly works on all carriers (though it was tested on the UK's O2 network—written by Richard Lai and spotlighted by Engadget. The shorter gist:

• Visit a website on your iPhone and download a new carrier profile
• TETHER!

Let us know how it works in the comments. UPDATE: Some people are reporting that these hacks can screw with your visual voicemail. Careful!

The caution from Palm suggests that 'they' don't have a problem with someone figuring out a tethering solution for the easily hackable handset, but that Sprint - who don't allow tethering, even on their $99 everything plan - might.

Palm warned that if Sprint complained, they would be forced to react against the people running the site with legal action. As a result the guys at Pre Dev Wiki have pulled any tethering chat and posted an explanation as to why it has gone.

We have been politely cautioned by Palm that any discussion of tethering during the Sprint exclusivity period (and perhaps beyond-we don't know yet) will probably cause Sprint to complain to Palm, and if that happened then Palm would be forced to react against the people running the IRC channel and this wiki.

They have however, added a note stating that Sprint does not have a Pre plan which allows tethering under the Terms Of Service. It seems like everyone involved is sticking a finger up at Sprint, though not necessarily to their face. [Pre Dev Wiki via PreThinking]

[Image via Tethering Blackberry]

Apparently, because people were using MMS with the iPhone 3.0 betas, AT&T put an opt-out on all iPhone accounts. So, theoretically, if AT&T manually (yes...manually) removes all of these opt-outs, MMS would work just fine.

As for the tethering delay, BGR also noted that AT&T is still in the process of hammering out a pricing plan—possibly as much as $70 per month for unlimited data/tethering. None of this is confirmed of course, but $70 a month for an unlimited data plan with tethering would be way to damn much. [BGR]

The guys at winandmac say they've noticed a change in the YouTube app's stream handling. Now, instead of defaulting to the low-res OTA version of a YouTube video when connected via 3G, the app plays the high-res version previously reserved for Wi-Fi.

Meanwhile, in our comments and over at the iPhone Blog, AT&T-bound Beta 5 users are reporting that the simple MMS stopgap hack is no longer possible.

It's only been few hours since Beta 5 burst forth into this world, naked and screaming, so more changes are bound to bubble up to the surface—there are already rumblings that new anti-tethering measures have been implemented, but this hasn't been confirmed (and may have more to do with new security features in iTunes 8.2 than iPhone OS). [winandmac and the iPhone Blog]

What this means is that means that listed apps can be defined as carrier specific, by Google. A tethering app that violates T-Mobile's ToS will be either invisible or inaccessible to US users, while available to someone on a tethering-friendly network elsewhere. This has the effect of creating carrier-specific App Markets, and an uneven Android experience from company to company.

Of course, you can still install whatever apps you want if you're willing to get your hands a little dirty, but removing a category of app from the Marketplace will make it effectively off limits for most. [Android Community]

It's not yet clear if all tethering apps have been pulled from the Marketplace, but a some have—and we know why. Though the developer of Wifi Tether for Root Users—one of the apps that got pulled—doesn't reprint his entire exchange with Google, he tells us that their reasoning invokes T-Mobile's terms of service, which (surprise!) prohibit unofficial tethering.

These actions surely won't sit well with many, but it would have been naive not to expect them, at least a little. For all the "open" trappings of Android, the G1 is still a subsidized phone. Protecting their own interests and arguably counter to the OS's ethos, T-Mobile locked the phone, like all carriers do. Likewise, to capitalize on tethering plans (or alternately, to minimize data traffic) they're now demanding that Google pull apps that endanger their business interests, despite the fact that anyone can just download these same apps independently of the store and install them anyway.

But that's obvious. What's not obvious is why they doing this now, and why they allowed these apps in the first place, setting a precedent for the Marketplace's independence from carriers' dictates that they now have to break, making asses out of everyone involved. [False Dichotomies via Android Community]

• How To: Fake the iPhone 3.0 OS On Your iPhone Today
What everyone can do is check out our directory of iPhone apps—both legit App Store apps and unofficial jailbreak software—that already provide the iPhone 3.0 OS's major feature additions. Copy and paste, tethering, running apps in the background—we've got almost all of it covered.

• How To: Install Unofficial Apps on Your iPhone 3G or iPod Touch, Easily and Safely
But first, you'll want to jailbreak your phone. And thankfully, we have a detailed guide for that too. Jailbreaking unlocks the wide world of Cydia, where you'll find most of the iPhone 3.0-related features covered.

• How To: Enable 3G Tethering in Your iPhone 3.0 Now
And finally, if you've cozied up to a dev and gotten them to register your iPhone's ID as a beta tester, here's how to test out iPhone 3.0's built-in, official tethering solution to use your 3G connection on a laptop.

Happy iPhone hacking everyone, and have a great weekend!

Warning: ONLY DO THIS IF YOU KNOW WHAT YOU ARE DOING AND CAN ACCEPT THE RISK*

To get this to work with AT&T, follow these instructions:

1. Download this file. The image files contains a modifid ATT_US.ipcc file, which is a bundle that contains different property list XML files. These text files enable or disable functions in the iPhone.

2. Plug your iPhone with iPhone OS 3.0, and wait for it to connect to iTunes.

3. Option + Click on the "Check for updates" in the iPhone screen.

4. Select the ATT_US.ipcc file.

5. The iPhone's version of the file will update.

6. Once it restarts, go to Settings > General > Network and turn on tethering.

7. Enable the USB connection, but say no to the Bluetooth tethering.**

Done. Now connect your iPhone to the computer. The computer will automatically detect a network connection on the USB port. It just works.

Turn off your Wi-Fi or unplug your Ethernet to check how it works.

** Tethering over Bluetooth only works with older hardware, before the current revisions (Bluetooth to 3G tethering won't work in the unibody MacBooks.)

*WARNING: A reader reports that since installing this file this morning, he ran into some problems:

• Camera icon is gone in the messages app (doesn't matter, since there's no MMS capability yet).
• Voicemails are not coming in.
• There's no data on 3G bandwidth consumption in your online AT&T account. BEWARE: SINCE TETHERING IS NOT SUPPORTED BY AT&T, THERE'S THE POSSIBILITY THAT THEY MAY BE CHARGING YOU FOR USING IT

[File from joachimbeam—Thanks J.]

I missed this one—even while I gave up and joined the Twitter cult a couple of days ago, after trying TweetDeck—but apparently Wired thinks it may be legit because Troughton-Smith has other captures and his story seems to be coherent. Unlike his explanation about it:

So if you were looking at how to activate it—like I was—it seems we are all out f luck. [Twitpic via Gadget Lab]