Xbox brand is pretty much dead at this point worldwide. Nintendo got jp by the neck.
I think we know where the market is going next gen - PORTABILITY!!
SONY will definitely try the Nintendo strategy, not exactly 1 to 1 but close. Same with Xbox. Hell they are already laying the ground work. It's kinda like the wii, Kinect, PlayStation eyetoy all over again.
Regardless good on Nintendo for reading the market and realizing that PORTABILITY is the current and future just like smartphones taking over.