Got a news from a simplified Chinese web-site, talking about a RTOS designed for:
AT91SAM7X256 LPC2478 s3c2440 STM32F103VB/ZE LM3S i386
with TCP/IP, Filesystem, and GUI support, and can be compiled by GNU GCC or RealView MDK, most source codes are based on the GNU GPLv2 license.
Its web-site: code.google.com/.../
Introduction
The Real-Time Thread(RT-Thread) Operating System is an open source real-time operating system developed by the RT-Thread Studio based in China, after four years' fully concentrated development. It is aimed to change the current situation in China that there is no domestic owned Intellectual Patent in the small scale open source real-time operating system area. It is a real-time operating system not only on the open source level but also on the commercial standard level. Having been used by more than ten companies in China, it proved to be an operating system running stably for weeks.