Desktop Multiplier Software turns one computer into ten using extra video cards, keyboards, and monitors. Installs on most popular Linux distributions (RedHat, Novell/SuSE, Fedora, Mandriva, Xandros, Linspire, Ubuntu, etc.).
Developer: Userful Corporation
Free to try; $99 to buy | Linux
Desktop Server is a multi-user/multi-station Linux operating system that allows up to 10 independent users, screens and keyboards to work wfrom just on PC.
Developer: Userful Corporation
Free to try; $99 to buy | Linux