What about Twitter?

I've been playing with Facebook's mobile features recently. I particularly like the ability to update my status by texting from my cell phone. And that got me thinking...

What about Twitter? I mean, that's kind of what Twitter is all about, right? And I've always kind of been, well, appalled is too strong, but mildly repulsed by the whole concept of updating my status whenever I turn around. But it's kind of fun, too, in a really narcissistic kind of way. So I was wondering...

Do any of my friends use Twitter? Would anyone care if I'm driving to work, or sitting in a bar listening to Junk Science (great band, btw), or whatever? So tell me...

What about Twitter?

P.S. In case you don't know wtf I'm talking about: http://twitter.com/