I’ve tried three Twitter clients on my Blackberry 8330, and it looks to me like Ubertwitter is a real keeper. I started with Twitterberry, but was disappointed with its ability to post to Twitpic (only very small pictures). I tried Tweetcaster, and while it worked better with Twitpic, it was slow and somewhat kludgy. I picked up on a story about Ubertwitter beta-5 while surfing RSS feeds. This version of Ubertwitter was released on 9/15/09, and seems to be a great piece of code. I’m using the free version right now, but I’m thinking about sending them the $4.99 for the ad-free version. It uses Tweetphoto by default (other options are available) instead of Twitpic, but that’s less important to me than the fact that it seems to work reliably, and that TweetPhoto seems to be a very viable Twitter-focused photo site. They say that the TweetPhoto API is more flexible and robust. I’ve only put a couple of pictures up, but it seems to work great. The Blackberry client has lots of configuration options. It offers a picture preview in the tweet stream. A great job…check it out if you need a Blackberry Twitter client!