Run Linux from USB drive in Windows and Linux

I found this great little distro while searching for a small yet useful linux distro that would fit in my USB drive. This distro is built from knoppix, and can run inside of windows or linux, and the next version will also work inside of OSX. Check it out, it has a full GUI and it only takes up 89mb! http://www.metropipe.net/ProductsPVPM.shtml