MPeaFlea is a project that aims to create and design the hardware and software for a portable (physical) mp3 player with a completely open design. Preferably it will also support ogg vorbis and will be developed around an ARM9 processor.
This project consists of pre-built kernels and patches which provide significant enhancements to the Linux kernel used on RioCar / EmpegCar music players.
tOfuS is an OS kernel with framework capabilities, in order for everyone to experiment on it. (was: A Music-Production oriented Operating System, for use in recording studios and live performances as a mixing desk and user-programmable DSP).