Unsee - The ability to open a chat session and message then delete it from history forever just like tlk.
SmartWindows.app - Auto arrange all your app windows, whether on one screen or many with a single click!
Chatango - Add free live chat to any web page. Chatango is a live group on your site
ReIcon - ReIcon is portable freeware that enables you to save and restore your desktop layout.
Walkaround - Walkaround is a variant of Wave, based on the Apache Wave code base, that runs on App Engine.
VC Starter Kit - Everything you need to look like a Venture Capitalist