the entertainment and devices division offering include the Xbox platform windows phone and zune digital music plat form the products in these markets have very rapid lifecycles with new products technology continually entering the consumer market for example gaming and entertainment consoles have a life-cycle of only 5 to 10 years and competitors for the Xbox platform with Sony's PlayStation 3 steadily taking market share from both Nintendo and Microsoft resulting in a 3.9 percent decline year after year to 22.68 percent Xbox Microsoft is hoping that strong sales from 2010 kinect-for-Xbox release may help make up ground