After seeing this latest Twitter app offering, I think Commodore 64 availability should be the benchmark to judge whether or not your web 2.0 app has officially "made it." Yes, there's really a twitter app for the C64.
Breadbox64 runs on the embedded Contiki OS, and lets you tweet and view your friends' timeline from the ancient platform, provided you have the proper networking gear installed. It will even automatically update your timeline every two minutes. The UI is as 8-bit as can be, though I wouldn't call it the most aesthetically pleasing thing in the world (you didn't expect it to look like TweetDeck, did you now?). Anyways, you can download it if you want here. It's good for a novelty tweet or two. [Van den Brande]