Brew Operating System
Blackberry, Blackberry OS
Con's: * Some distributions require some knowledge of how Linux works to get the most out of that distribution. * Not many companies make programs for Linux. * It's a pain in the *bottom* to try to get Linux to run on a system with another OS already installed.
Pros: * Almost every game runs on it * Tons of programs run on it * More Cusomization on the computers is possible
Pro's: * Most distributions are free (Open-source). * Good for servers. * Some distributions have good user support. * Some distributions allow you to test before installing (LiveCD).
Cons: * SPYWARE, VIRUSES, ADWARE GALLORE! * Not as "nice" looking * Error message after error message