you can't spell twitter without 'teit'..
it's a way for followers (those who subscribe to your twitter) to read all about the inanity and insanity of your life in short little bursts of info-only 140 characters. And you can do likewise. it's not really a forum for chat. just info.
The Mayor of Toronto is addicted. good gawd.
Sports stars are twits too:
http://www.nationalpost.com/sports/s...tml?id=1430958