It looks like there are 2 versions: 1 Universal and 1 iPad-specific. If I had 1 copy of the universal and synced it with my son's iPhone, my wife's iTouch, and my iPad, will we be able to play 1 common session in our living room? Will the universal work with the HD version?
http://a1.phobos.apple.com/us/r1000/...320x480-75.jpg

