Even Nintendo, whose motion-control system has been around for about four years now, is not planning on releasing a successor to the Wii anytime soon.

FORBES: Probably No Next-Gen Xbox Or PlayStation For Next Five Years

The recent launch of Microsoft Kinect has come with lots of fanfare and positive buzz from reviewers wowed by the magic of the new motion-based control game system addition to the Xbox 360.

FORBES: Kinect Is A Flashy Diversion, Microsoft's Real Xbox Strategy: Online Video

Add to that the voice and motion-control abilities already available with the Xbox Kinect system, and you can see Microsoft's vision for making the console a centerpiece for all electronic entertainment.

CNN: How Xbox SmartGlass will work

But Microsoft's internet-TV system does do one thing other don't -- full-body motion control.

CNN: Microsoft tries to redefine the couch potato