Handmark has released a Twitter client for BlackBerry called TweetCaster.
TweetCaster offers nearly twice the number of features as alternative BlackBerry smartphone or mobile web-based solutions. In addition to all the standard capabilities needed to enjoy a complete mobile Twitter experience, TweetCaster offers:
Ability to toggle between multiple accounts
URL shortening
Picture sharing
One-step @reply and retweet capabilities
GPS locator to find Twitter friends near you
Real-time trending topics list
download now