premise: Microsoft Corp. broke sales records in 2010 when it released its Kinect - a movement-tracking device that enabled Xbox users to play their favorite games through gestures alone, without need of a controller.
  Now, with the help of outside developers, the software giant is hoping to move the Kinect beyond gaming.
  Microsoft is expanding into China with a company-funded incubator program for outside developers to build products based on Kinect technology for a range of industries including health care and retail.
  In the U.S., 11 companies were selected last year for the accelerator's first three-month class in Seattle, out of nearly 500 applicants. Microsoft said it has identified three companies for the China program to run through June.
   What caused Microsoft Corp. to break sales records?
hypothesis: move the Kinect beyond gaming