Plug NES USB game controllers into iPhone with GameDock

GameDock is an iPhone dock that comes with game controller ports. Kyle Orland:
"At $125 per Dock (plus the cost of an iOS device), the GameDock at first looks a bit less attractive than the $99 Ouya, which is self-contained. But the creators note the power of Apple's iOS devices and the existing library of proven, working games as benefits, and say they think keeping the TV interface separate from the actual mobile platform is actually the better way to go."