Task List - Personal task manager and to-do list app for iPhone and iPad
Gajim - Full featured and easy to use Jabber client
Habitify - The easiest way to keep track of your habits
Miranda NG - Miranda NG is a successor of a popular multi-protocol instant messaging client for Windows - Miranda IM. Very light on system resources and extremely fast.
Capsicum by Illuminated Bits - Plan your day. Track your habits. Tell your story.
IM+ - Chat everywhere! IM+ is the most widely used mobile IM app! Connect all-in-one to MSN, Yahoo!, Goo...