It has funny effect for tweet, e.g. shout, wasting, grass etc.
In addition, recently it started to support Emoji.
The app is written with the Qt framework, so it runs on many kinds of platforms. For instance Windows, Maemo (MeeGo) and Symbian. Yes, it could run on Mac OS also, but the developer doesn’t have any emulator or hardware, so QWassr on Mac OSX has not been tried yetGo back