Project BlackDog USB powered Linux handheld PC

Portable computing redefined: BlackDog is a PowerPC based Linux handheld with USB port for power and connectivity to a host PC (as a virtual CD-ROM), a fingerprint reader for security and 256 or 512MB of flash memory for locally storing applications and data. You just plug it into a normal Windows PC, and it takes over the screen, keyboard, mouse and network stack of the host PC. After disconnecting it from the PC you leave no traces.