The Verge’s Paul Miller wrote a solid article on how the big three console companies will evolve:
In the game world, where the topic of “casual” vs “hardcore” gaming is still a hot-button issue, Microsoft has side-stepped and pulled its chips off the table: it’s just mainstream. When Microsoft and Sony built Kinect and Move, respectively, to compete with the then-dominant Wii, they were both making a casual play. When the backlash came a year later, as hardcore gamers felt like they were being abandoned, Sony was quick to shore up that fanbase, but Microsoft kept it casual.
I wouldn’t quite go so far as saying Microsoft is “just” mainstream but Paul is on the right track. You can substitute ‘mainstream’ here with ‘evolving’; Sony is steadfast on 3D and the hard core market while Nintendo has a multiplayer network out of the 90s and regurgitating IPs from the 80s. Only Microsoft acknowledges the mobile elephant in the room.