Go take a look: BeOS Lives: Haiku Impresses
This isn’t my usual subject, but I encourage all the techies out there to take a look at the Haiku Operating System, and tell techies that you know to take a look.
Haiku is an open source operating system currently in development designed from the ground up for desktop computing. Inspired by the Be Operating System, Haiku aims to provide users of all levels with a personal computing experience that is simple yet powerful, and void of any unnecessary complexities.
Also take a look at BeBits.