Scratch an itch, and build something you'll use, because if you don't use it, it's much less likely that anyone else will! I do have one suggestion, that I'd u

Scratch an itch, and build something you'll use, because if you don't use it, it's much less likely that anyone else will! I do have one suggestion, that I'd use... a really minimalistic Twitter web client, with beautiful typography and some balanced whitespace. Watch Rick's List on CNN for when they show the Tweets for what I mean.