Rainmeter is a desktop customization platform. Through Rainmeter, you can enhance your Windows computer at home or work with skins: handy, compact applets which float freely on your desktop, much like Windows Sidebar gagdgets, or dashboard widgets for the Mac.
This is the second Beta towards the next major release, full changelog can be read over here.
Tools and Utilities
1.2 beta revision 340
Product page: here