All-Glass Firefox is a stylesheet for firefox that allows it to use the Windows Aero Glass effects, basically making your entire firefox transparent in Vista. For full useage they reccomend using the latest Firefox beta, but it works fine if you’re running stable as well.

This is very useful – running an Android app natively in its own window under Ubuntu. Why hasn’t Palm or Apple done this?

This was voted the best tool to keep the tags of your mp3 collection in order.