Presumably pre-ordered bundles don't count in these totals, so the PS3 is doing surprisingly well given the number of people who would be inclined to get themselves a 80GB (+MGS +DS3controller bundle) version, which hasn't been available in NA for a while now.
I wouldn't be surprised if its just the new 80GB bundle that will move hardware next week. The MGS4 bundle will be just a bonus for a lot of folks -- an awesome bonus, that will perhaps fuel more software sales via "wow... that game was incredible... I must have more". The 80GB bundle is an awesome tool for pushing PS3s, from any standpoint. All these numbers might be saying is that the regular PS3 purchases have dropped some, possibly due to the bundle's popularity.
As I recall, while it was still on the shelves, the 80GB version typically out-sold the 40GB version of the PS3, in NA.
