It's from http://www.xymantix.com/sysmetrix/
it's a great little system metrics and monitoring gadget. There are hundreds of different skins to download.
It's called Sysmetrix: Just thought I'd share that with all that haven't heard of it before. It monitors absolutely everything and is completely customizable. Check it out.
Edit: Skins are available at http://www.wincustomize.com
It's Free, so please don't think this is SPAM. Enjoy : )