Tweety is a Social & Communication software developed by pjcooke. After our trial and test, the software is proved to be official, secure and free. Here is the official description for Tweety:
MarydownEditor: A Twitter client written in c#, with a clean simple interface.
Functionality at the moment:
Checks automatically for new tweets. Alert box for new tweets. Update the user's status. Images are cached for faster refreshing.