According to http://insiderx.com.au/2009/07/20/wolfenstein-3d/

The OG (OFPS?), Wolfenstein 3D is now available to download on Australian XBLA. If anyone jumps on and gives it a bash let me know how it goes? Also curious as to the price point. Its up for 400 MS points.

http://marketplace.xbox.com/en-AU/games/media/66acd000-77fe-1000-9115-d802584109cb/

Achtung! You are OSA super agent B.J. Blazkowicz and you must escape from Castle Wolfenstein and defeat the twisted Nazi regime! Fight all of the memorable enemies from Hans Grosse to Mecha-Hitler in the legendary game that launched the First Person Shooter genre. Search classic levels for hidden secrets that reveal stolen Nazi treasure, health packs, ammo and weapons, or even short cuts.