“The top-of-the-line XS model also includes the Roku 2’s new Bluetooth motion-capable remote. In addition to using the buttons to control browsing and playback on your Roku 2, you can use the motion sensitivity to play games, such as Angry Birds (itself also included free with the Roku 2 XS).”
Some have wondered if the second-generation Apple TV – which is built around iOS, unlike its predecessor – may be upgradeable at some point to play games. Either way, it’s something interesting to differentiate the Roku 2 from other set top devices.