Starting December 2nd, you'll be able to buy Xbox 1 games on your 360, through XBL, at 1200 points each!!
The first batch of games include: Halo 1, Fable, Indigo Prophecy, Crimson Skies, Crash Badicoot: Wrath of the Cortex, Burnout 3
http://www.joystiq.com/2007/11/13/fa...halo-december/