Mobile Personal Server

I just ran across startup Realm Systems' Mobile Personal Server. It's basically a cell phone sized server (400 MHz dual PowerPC processors, up to 64 MByte DRAM, up to 20 GByte hard disk space, up to one GByte Flash memory) that you plug into any USB equipped host computer (OS X, Windows or Linux) and it "hibernates" the host PC's operating system and takes over hardware components such as screen, graphics, keyboard and mouse.

It's definitely worth checking out - especially their 10 minute ad featuring John Lovitz and Gary Coleman.