I'm always fascinated by the weird and wonderful names developers dream up for their Twitter clients, and Quakk is one of my personal favorites. Unfortunately, the app itself doesn't quite live up to its cool name.
Quakk is an open source Twitter client for Windows Mobile, allowing you to view your feeds and post tweets from your Pocket PC. The program is easy enough to use. Once signed in, you'll see a list of all the latest posts from the people you're following, in the form of a timeline. You can quickly change the view of the timeline to display either all tweets, only replies, or only direct messages.
Click on a tweet in Quakk and you'll be present with three options: Send Reply, Send Direct Message, or Open Link, which are all pretty self explanatory. To send a tweet of your own your just need to select 'Tweet' from the Menu.
Although Quakk is very straightforward and streamlined, it lacks the power of its contemporaries, such as Twikini, ceTwit, or Tiny Twitter. For instance, there's no support for uploading to TwitPic via the device camera, no GPS location support, no quick retweeting functions, no search tools, etc.
It's by no means a lame duck, but Quakk lacks the tools needed to keep up with the rest of the flock.