d7o3g4q released the first public (closed source) 'proof of concept' media player for the Xbox, that player was called XBPlayer. He soon joined forces with the developer of the secondly released working media player for the Xbox, RUNTiME. RUNTiME's player was called XboxMediaPlayer and that name (which when shortened is called XBMP) was adopted by the two as they started to develop that player as a joint effort. A few months later a developer called Frodo released an open source media player for the Xbox, that player was called YAMP (Yet Another Multimedia Player). Frodo joined d7o3g4q and RUNTiME in the XboxMediaPlayer project and XboxMediaPlayer was made open sourced. A couple of years later the XBMP project team-members annanonced XBMC (XBox Media Center) as the successor to XBMP. XBMC is a complete rewrite of XBMP by the same developer-team, ...and the rest is history.
d7o3g4q is currently M.I.A. (Missing In Action) and have not been heard from in years.