It is possible, and may be true.
However, why Microsoft will emulate the Xbox 360 on his new OS?
It may be a strategy to kill all console gamers, and to bring everyone to the computer ??
Because then, Sony won't be able to handle this situation.
Honestly, If the Xbox 360 was emulated on the computer as of today, I won't buy a PS3...
And I'm surely not the only one in that case