One of the things I've noticed lately is that I'm spending way more time on Twitter than I'd like. Truthfully, it's fairly addictive, and I really don't know why. This afternoon I noticed I noticed myself sitting on the updates page, refreshing occasionally, waiting for a few replies to some messages I had sent out. While doing that, I had the sudden idea that Twitter (at least for me) would be a bit more useful if it were a push system instead of a polling system. That way at least, I wouldn't have to sit at the site and continue to poll it -- I could simply be notified when a new @ message was ...