I think as mobile web browsing becomes more prevalent you will see this be very mainstream. It plays to the short attention spans, plus egos, plus social networking-- couple that with an already strong mobile presence and it is only a matter of time before a million teenagers are riffing off each other in 140 characters or less.

I agree with Victor, I use Twitter constantly and in the past week I've gotten an interview with a Voice of America reporter, gotten mentioned in a BusinessWeek article, and found a replacement nanny, all solely because of Twitter! the thing about Twitter is the investment is super-low (compared to many other social media), but the potential payoff is huge. it's a great way to meet people (no one knows if you 'unfollow' them so you can follow just long enough to find out if they're talking about things that interest you) and if you follow the right people, you can learn some amazing things. I get nearly all my news from Twitter these days!

The problem with Twitter is its apparent inability to scale. The technology is sound, and I believe it has applications beyond simple status blurbs and "shout outs." The site is plagued by downtime, which is, of course, an indication of its popularity as well. The real question, however, is the revenue model. Can microblogging be monetized in a "cool" and nonintrusive manner?

Well, i don't see a reason for 1-string-blog either, but some friends of mine use it as online fun chat, referring to it as a new inet-trend =) doesn't mean, it will last long though