Interested in Real Tile System Programming??? Check this OS for sure!!!

Contiki is an open source, highly portable, networked, multi-tasking operating system for memory-constrained systems.

Contiki provides a simple event-driven kernel with light-weight protothreads, per-process optional preemptive multi-threading, interprocess communication using message passing through events, a dynamic process structure with support for loading and unloading programs, native TCP/IP support using the uIP TCP/IP stack, and a GUI subsystem with either direct graphic support for locally connected terminals or networked virtual display with VNC or over Telnet.


The Contiki Operating System