The next stop in our Ultimate Twitter Client Roundup is Twixtreme from Xtreme Labs. Twixtreme hasn't been around all that long, but more and more users are picking it up and seem to be happy with the interface and features. It doesn't have the full-blown features of some older clients (or nearly as many options) but it does have a great look and some cool animations. The guys at Extreme Labs are still hacking away and sneaking in some updates, so I'd say Twixtreme will stick around for a while, although it may not be everyone's first choice for a BlackBerry Twitter Client. Check out the video for a quick walkthrough.