For those who has a Twitter account, you shouldn't miss this application for your BlackBerry. It's called TwitterBerry. I have been using it for couple weeks now. It's plain and easy to use. You should give it a try!
http://www.orangatame.com/ota/twitterberry/
And.. for those who don't know what is Twitter, please read here for more information.
http://golffy.com/2009/03/19/twitter/
