The OP stated that he (or she - sorry I can't be bothered to check your proile, site seems a bit slow) doesn't count W.S.R as a 20m seller becaused it is bundled, but isn't Kinect Ads not exactly the same. Forgive me if I am wrong but your definition of bundled seem somewhat bias.
Kinect Adventure have every chance of making 20m bundled and I believe it will.
COD probably would have reached 20m on the X360 if it wasn't released every freakin' year.
If no other COD was released since Modern Warfare (the first one) or maybe COD:WAW, then both would have had enough time to probably make the 20m for x360.







