I'm still twittering and still getting a feel on how to best use it. The benefit seems to be evolving for me personally. It's definitely addicting
I like how I can easily and quickly publish something
But it's also a persistent, always-on chat room for the 19 or so friends I have in my twitter network
And I also like how 3rd parties are supporting twitter.
I can now post my current tune on YottaMusic to twitter
I use Twitterrific as my desktop client to publish and to tune in
I can think of a few others mashups with twitter - maybe 2-3 of our portfolio companies. Hmmm.