Embedded Linux
Open standards for open source
http://www.embedded-linux.org/
LynuxWorks
Rtos (real-time operating system) and embedded linux os for embedded and rtos-based systems.
http://www.lynuxworks.com/
Silicon Penguin
Avoid stigma of paying a publisher! we want your book, not your money
http://www.siliconpenguin.com/
Symbian
Symbian is a software licensing company that develops and licenses symbian os, the global open industry standard operating system for advanced, data-enabled mobile phones. symbian licenses symbian os to the world's leading handset manufacturers. the following symbian os licensees have symbian os-based mobile phones in production and / or in development: arima, benq, fujitsu for ntt docomo foma, lg, lenovo, mitsubishi, motorola, nokia, panasonic, sendo, sharp, siemens, samsung and sony ericsson. in 2004, over 14 million symbian os-based mobile phones were sold worldwide and more than 25 million have been sold to date. symbian has its headquarters in london, united kingdom with offices in the united states, europe, israel, australia and asia (bangalore, beijing, seoul and tokyo).
http://www.symbian.com/
TimeSys
TimeSys
http://www.timesys.com/