This article by a PhD student at Shanghai JiaoTong University (SJTU) Research Institute of Robotics describes an RTLinux-powered robot that placed fifth in the most recent RoboCup competition. The robot has two color cameras for visual sensing along with a laser range finder (LRF) for goalkeeper location, and a wireless LAN allows communication among the robots on SJTU’s team. The robot’s embedded operating system is Red Hat Linux enhanced with the RTLinuxPro real-time extension.

Very interesting, read about them:
Linux Devices [ article ]