A different PC makes all software needing registry entries **** out and reset to defaults (or go into a not licenced software mode).
Smart novell idea, but a direct copy of U3 which was first to market with the same idea (just this can be installed by users, vs factory install on USB devices like U3).
IMHO: It is just another Internet scam to make money. Sure it has some uses in special cases with special software (not needing to read/write to the registry - which ain't much software these days), but considering VMWare Player is free and both need Admin privledges to install VMWare Player is the superior choice for Linux, Windows, Solaris, etc in a controlled Virtual Machine.
For those that can't read between the lines: MojoPac is not a Virtual Machine.
I was going to point this also but I guess I'll just re-iterate: this solution provides near-zero protection from a host machine running malicious or otherwise "eavesdropping" code. You must BOOT into a protected environment to have any expectation of increased privacy (which many internet cafes would not even allow, btw) and visually check for hardware-based spy mechanisms.