Unlike email and cell phones, Twitter is pure distraction. As if we weren't ADDed enough already. It will serve to divide us further - between those who actually do and create (which usually means turning off most communications devices), and those who simply want to feel they're participating in "the flow" in some way. For those who already feel like their full time job has devolved into answering and sending email, do we need any more noise? Maybe we need personal assistants to twitter for us?