Alan Wake is an XBox 360 exclusive game. Hopefully it can help the 360 sales. 360 needs a saviour. PS3 is catching up very quickly in console sales.
I just want to see a good sales race between the PS3 and 360. At the moment PS3 is totally smashing the 360 in weekly console sales. Adjustments are likely to narrow the gap even further.
Halo: Reach is unlikely to become a console seller because two Halo FPS games have already been released and most existing Halo fans already own an XBox 360.