"A German publication has posted an interview with Todd
Hollenshead, id Software's CEO, that reveals id Software and John
Carmack are no longer as committed to Linux as they have been.
Todd's words also imply that the Windows version of id Software's
next game, Rage, will use Direct3D rather than OpenGL.
"Id Tech 5, id Software's new engine, was first publicly shown
at this year's Apple WWDC event running on a Mac..."