Twitter's approach

I have been using Twitter a while, and I really like the concept Twitter makes it easy for users to tweet. You can tweet anywhere with anything: through cellphone, smartphone, stand-alone application, web application. You don't need to sit down in front of the computer to spare you time to post things. You can just "tweet" instantly when somethings comes out of your mind through your iPhone, blackberry, or even QuickSilver in mac.