It could be a play to increase the number of Internet Explorer users. It could be a differentiator between them and Playstation. It could be both. Either way, Xbox 360 users may soon have a Kinect-driven full version of Internet Explorer available to them for full web browsing in between games of Call of Duty.
By applying voice and gesture control, Kinect integration may have people surfing the web while waving wildly and screaming madly. There is no time frame laid out at this point, but expect to hear something before E3 in June.