Wii Sports, step aside, there's a new game in town, and it's Motion Tennis ($8). With an app available in the iOS app store, all you need to play realistic tennis in your living room is an Apple TV and an iPhone — no need for an additional (rather childish) console. The game uses the magnetometer, gyroscope, and accelerometer on your phone, so that it can accurately interpret your movements without the need for an external sensor. Setup is a breeze too. Just pair your phone with the Apple TV, and play (just don't let go).