The guys at Xtreme Labs (developers of the sweet urbanspoon and NBA Game Time apps) let me know that Twixtreme has made it into BlackBerry App World. The Twitter client is relatively new to the list of BlackBerry clients, but it does not disappoint. The ad-free app lets you view timelines, post, upload pictures and more. If you are looking for a good alternative to Ubertwitter and haven't made the cut for Socialscope, Twixtreme is definitely worth checking out. The app runs on all devices using OS 4.6 and higher and is 100% free. Head over to BlackBerry App World for more information.