I believe it contains improved Game Finder App and also improved Voice features on the 54.0 remote.
In addition on the voice remote you can now say things such as Play, Resume, Skip Forward, Stop ,Pause, etc... as well as launch apps like Netflix, Youtube, Gamefinder, Pandora and the Weather Channel. You can also say Play and the name of a show and it will play it from your DVR or live TV.
