Can it? Theorhetically, yes, as both have an install base well over 20 million. However, will it? If Kinect maintains its momentum and Adventures remains bundled, then it is possible. However, given that there are a grand total of 4 games to crack 10 million (and 2 fall out before reaching 12 million) on one platform not published by Nintendo, it's very unlikely without the Kinect scenario above. If San Andreas can continue selling well in developing areas for a little over another year, it may be able to be the first Sony platform game to crack 20 million. (I phrase it this way as Kinect may propel Adventures to cross before it.)
Either way, I think it will be interesting to watch. My gut wants to tell me that San Andreas won't make it (stopping around 19.5m), and that Kinect Adventures may lose its bundling status (lifetime ending about 15-16m) to allow other games to shine in the light.
-dunno001
-On a quest for the truly perfect game; I don't think it exists...
