Here’s a list of key features for the new version :
Tweet Location :
Geotagging functionality on Twitter for BlackBerry smartphones is designed to allow BlackBerry smartphone users to add their location to their Tweets. Users can switch location on/off before each tweet.
Users can receive immediate notifications, using BlackBerry Push technology, when they are mentioned by another Twitter user. Users can control whether they want to be notified when anyone mentions them or just when their followers mention them.
Direct Messages has been renamed to Messages to align with the Twitter experience and the interface has been updated to a chat-style layout.
The #Topic Autocomplete feature is designed to pop up a list of keywords based on previous hashtagged words in Tweets, Retweets, any hashtagged words selected or searched for in Popular Topics, and in applications like Facebook® for BlackBerry smartphones.
Retweets now appear in the Home timeline with a tag of “Retweeted by you” quickly alerting users that their retweet has gone through.
New gesture support
BlackBerry smartphone users with a touch screen device can now refresh page content by simply dragging a finger down the device screen and releasing it.
New Language Support
Twitter for BlackBerry smartphones 1.1 is now available in Czech, Simplified Chinese, Traditional Chinese, Thai, and Polish.