GeeXboX

Download
Stable - Official GeexBox 1.1 (VESA)

Wiki
Official Wiki
GeeXboX HDTV

Develop
Submitting a Patch - Creation of a patch under Linux

Links
http://gxben.wordpress.com/ - Ben’s Lost World - Diary of a GeeXboX developer
http://www.digital-corner.org/
http://www.moblin.org/
http://xbmc.org/wiki/?title=HOW-TO_compile_XBMC_for_Linux_from_source_code