You guys are misinterpreting the patent, the patent is for Apple devices to interface with a generic type of controller.

It does not mean that they're making a controller in the Dual Shock design, this is common for patents though (ie: Microsoft has XBox patents where the 360 appears to be interfacing with a cell phone device -- that looks exactly like an iPhone).

It *is* significant in the sense that if Apple is developing a Bluetooth controller or allowing third parties to make Bluetooth game pads that interface with the iPhone/iPad/Mac/AppleTV/iTV ... that could mean big trouble for MS/Nintendo/Sony. 

Because theoretically what this could mean is that you pay say $40 for a hypothetical iController from the store, then with an AppleTV or even a small dongle, Apple can have the iPad/iPhone that people already have in their house beam a signal to the TV, and voila, now you can play games without needing to spend $300-$400 for a game console. 

It'd be neat if it was compatible with MacBooks (iMac?) as well. A MacBook in a year or two should be able to smoke a PS3/360/Wii U at 720p if the signal could be beamed wirelessly to the TV. 

But it would be pretty interesting, that you could theoretically never be away from "console" style gaming. An iPhone in someone's pocket could wirelessly power a game like Assassin's Creed 3 on someone's TV someday soon.