I think it's too little to late.
The 360's been out on the market...how many years? I'll say 3 years, and they've focused almost all their attention to the US. Sure they tried to strike it good with Japan with Blue Dragon and Infinite Undiscovery (Or was it the other oddly named game?) but they've focused on the US to much and as a result the Wii and PS3 are dominating everywhere else if not partly in the US.
The Wii targeted everyone, so it was natural it would take over the world.
The PS3 targeted everyone who already had a PS2 and some more.
The 360 targeted the US at the point where they rely solely on the country.
Because MS has such a huge userbase in the US alone, what's going to happen when they loose the stranglehold of the US? I can understand why they would try and gain popularity in Europe and such, but I think it's too little to late.
Mah humble 2 sheckles.