Electronic Arts showed off a demo at the Electronic Entertainment Expo where two gamers played FIFA soccer on an iPad using their iPhones as controllers.

We've seen this kind of ingenuity in Scrabble for iPad, which lets you hold your virtual Scrabble tiles on an iPhone, but never in a way quite like this with multiple players controlling action onscreen.

Games like these enable your iPad to function as a portable TV, and give you more space on your iPhone for controls.

You might look like a total brat if you're caught doing this with a friend at the airport, but the concept itself begs the question of what other amazing titles we'll see take advantage of Bluetooth technology.