Update
I’ve been trying to not be sleepy these days. I’m not sure if I’ve caught up from not sleeping much at CIL this year (what a great time I had, hanging out with friends, old and new).
Anyway, I’ve been crazily reading feeds and sharing them on my linkblog. Also, I’ve been Twittering like crazy. What a great group of friends I have over there (come say hello and add me as a friend). Lately, I’ve felt that everything I do is in 140 characters or less. Heh.
Also, the more I think about it, the more I believe that Twitter has a big future in distribution and aggregation of content. Either that or it’s just really fun and addicting. Or both.
A few people that I would love to see on Twitter:
Gary Price
Walt Crawford
Ray Jassin (my boss)
Jessa Crispin (Bookslut)
Blake Carver
Tim Spalding
Where are you guys? 
Actually, I’d like to second the request to see some tweets from Tim Spalding. I would probably “befriend” most of the others on your list, but I would LOVE to hear what is going on in LibaryThingWorld via twitter updates!
Hmm. I don’t carry a PDA or smartphone or notebook computer… I’m only “connected” for an hour or so outside work on a typical day, and like it that way. And I’m not exactly a 140-character guy.
I’ve learned never to say never, but this one doesn’t seem real likely any time soon. “Walt Crawford on Twitter” sounds like a classic technology/person mismatch.