A new Kinect full-body motion scanner was shown off, featuring a higher-resolution camera capturing images at 1080p. The companion device, which executives called "rocket science-level stuff," can understand a user's balance, energy of motion, and even heart rate. The Kinect also allows the Xbox to be controlled via voice commands.
Apple's iTunes Store is nearing 50 billion ? billion! ? downloads. Here are the most-downloaded tablet apps ever.