One would have a hard time convincing me to give up Dropbox for anything else. Right now, I use it in conjunction with Sugarsync, which is also a pretty great app that also syncs with my iPhone.
I'm sure it's more about creating more incentive to upgrade than it being a matter of necessary components. There should be nothing special about an IM client that makes a previous generation operating system incapable of running it.
While I think it's more likely that OS X still has less simply for being the smaller target, I agree with what you're saying. Unfortunately, Apple will never abandon that marketing factoid until it's all too apparent to the average user that it's false.
I've been on the fence about swapping out the HDD for an SSD and doing the secondary hard drive option. Being out of warranty, I guess there's not much reason not to. I'm just lazy and not willing to spend the money at the moment. Do you use Time Machine at the moment? Does it only back up the main volume and the other you have to back up manually?
A friend of mine used to own one of these, and it was a surprisingly wonderful little car to ride in. Being taller, it wouldn't be something I can see myself being comfortable in for a long drive though.
This doesn't look like anything special at all. To really pique my interest, it has to have the ability to replace both iChat as well as something like Trillian or Adium by being just as versatile as the latter. Right now, I have to use both because they both offer advantages that I can't quite consolidate into a single application (video chat vs. facebook chat for me).
I really like Trillian and Adium. Pidgin doesn't seem to be supported on Mac. The only thing that would really set this apart is the ability to do video chat, and the probable lack of Facebook chat and others.
That Tesla S makes the Maserati Quattroporte look like a catfish riding a big-wheeled luge, and that Mazda is sexy. Too bad it appears to just be a concept. What's its story?