Most impressively, Ballmer announced that the company has sold 8 million units of its Kinect motion sensor since its release on November 4th.

FORBES: Ballmer Gets His Game On At CES

Microsoft just laid down a number of announcements about motion-gaming system Kinect, the biggest of which is that Kinect sold 8 million units in the first 60 days.

FORBES: Kinect Tops 8M Sold, Adds Netflix And Hulu Gestures, Tracks Expressions

Nintendo s Wii has been the undisputed leader of the current console generation, moving more than 95 million units, but its success was based in part on the appeal of Wii s motion-sensitive controllers to first-time videogame players.

FORBES: X Is For Entertainment

The original Wii has sold more units since its launch than both its rivals, but it lost momentum as the novelty of its motion controller faded.

WSJ: Sony PlayStation 4 with social, remote features

More than 40, 000 developers worldwide have requested to work with Leap Motion, and the company has sent out 12, 000 free units to developers to foster the creation of new applications.

ENGADGET: ASUS partners up with Leap Motion, PCs with 3D motion control to debut in 2013

The original Wii has sold more units since its launch than both its rivals, but it has lost momentum in recent years as the novelty of its motion controller faded.

WSJ: Sony shows PlayStation 4 capabilities, but no box