Only a concept now, but this charger-that's-also-a-iPhone-stand is easy enough that some Chinese company could quickly put out a solution in a few months. [Petit Invention via Into Mobile]

The Price: $79 for 2G, $99 for 3G

The Verdict: We've seen plenty of case-like backup batteries for the iPhone 3G the past few months, but Fastmac's iV could be the best in its class due to all the its features.

Its 3100mAh battery can charge the phone about five times from 20% capacity to 80% capacity, and in absolute terms, it's the most amount of juice in any backup battery iPhone case out there now. The USB port, at the bottom, allows you to charge an extra device on the road (maybe your Bluetooth headset) at the same time as the iPhone.

The iV's flashlight is bright, as in you really shouldn't look at it straight on. It's not bright enough to illuminate an entire room, but you can definitely find your keys with it. And the fact that the bottom actually fits into iPod/iPhone docks is an added bonus.

Our biggest complaint is the iV's size. In order to house a battery, USB charging, a flashlight and also somewhat envelop the iPhone, Fastmac didn't have much room to condense it down. It's more than twice as thick as an iPhone, and is slightly taller. You probably don't want to leave this docked all the time, but only take it out for a refresh charge when your iPhone's battery is running low.

Despite the $99 price, we still think this is the best all-around charger pack for the iPhone. If you're running out of juice often from a lot of usage, or if you just forget to charge your phone every night, the iV could be a fantastic crutch. [FastMac]

The tipster claims that the cord is incompatible with the 3G, leading us to believe that AT&T was simply clearing out inventory from the original iPhone and packaging it as a deal. And, as you know, many of the accessories from the original iPhone don't play nice with the new hardware. Needless to say, if your decision to buy an iPhone 3G hinges on a $10 car charger deal, don't be fooled. It could be a cleverly disguised trap. [Consumerist]

Why do I love it so much? Because it's an iPhone charger AND a night light. Is a further explanation necessary? The reviveLITE cradles your iPhone on its left while plugged in and illuminating your hallways and bathrooms. It's $40, which is expensive for a night light and expensive for an iPhone charger, but not that bad for an iPhone charger that's also a night light. [Scosche]

The Price: $299

The Verdict: It works pretty perfeclty. In our tests, the Powergorilla gave our MacBook Pro an extra 2.5 hours of battery life in everyday blogging usage (Wi-Fi on, lots of app open). That's on top of whatever the internal battery already supplies. The unit doesn't come with a MagSafe adapter, because of Apple's proprietary patent, so you'll have to buy a MagSafe airline adapter and connect via that. It still works, but it's an extra $50 on top of the $299.

Charging phones is an easier premise. As long as your phone can charge from USB, you're set. If not, there are other more proprietary tips and adapters that come with the unit. We couldn't test this ourselves, but Powertraveller also claims that the Powergorilla has many safety features, including voltage limitation, short circuit/voltage/overheat protection. Those are good things to have if you're operating this on an airplane.

Do we recommend this as a gadget? Definitely. Two and a half hours of backup laptop battery is always welcome (more if your laptop draws less power than the beefy 15-inch MacBook Pro), and the ability to emergency-charge your phones, iPods and GPS devices on the go is very handy. However, if you're only going to use this as a backup battery for your notebook, we'd recommend you just invest in a spare battery or two. $299 isn't cheap, but it is worth it if you're a traveler with a lot of different gadgets to charge. [Ecogeekliving ]

The Price: $25

The Verdict: Works as advertised. In our tests, it charged our iPhone 3G from 10% to 60% in about an hour, after which charging stopped altogether because the pack was out of juice. We then used another pack to take our iPhone from 60% to 100% in about another hour. Great for emergency days when you're low on power from a frantic 3G browsing session earlier that morning.

The only complaint we'd have is that unlike other chargers that wrap around the iPhone to secure itself in place, the Power Station only connects via the dock. This results in a flimsy connection that might snap off if you're not careful. So be careful and don't stick the phone in your pocket when this is docked.

At a price of $25, it's the cheapest iPhone battery pack that we've seen. Despite its drawbacks (only charges about half the phone's battery and is sort of flimsy when connected), we'd still recommend it as a backup battery for emergencies. [Brando]

Side note: The original unit Brando sent us was defective and would alternate between charging state and plugged-in state, eventually going to DRAINING state. If you get one of these, call them up and get a replacement as it's obviously not supposed to drain your phone.