Real Racing 2 HD for iPad - $9.99
Real Racing 2 HD’s update takes advantage of fullscreen 1080p output and enables users to plug-in their HDMI adapter to play the game on a bigger screen. As MacStories pointed out, “The new feature doesn’t use scaling, it’s full HD being mirrored to the TV. It runs at 30 frames per second”. The game contains a 10-hour career mode, 30 cars, 15 racing environments and while you’re playing (on the TV) the iPad can be used as a real-time map of your car’s location. The update is coming soon but the app is available for $9.99 in Apple’s app store.
There should really be an option to use a secondary iOS device as a controller, but the 1080p output looks stunning.