We heard many (many) rumblings of actual "Made for iPhone" controllers being demonstrated behind closed doors at both WWDC and E3, so it'd only make sense in this brave new world of everyone walking around with a camera in their pocket that we'd get some spy shots of it. According to Kotaku, this is it:
Now, before getting all mad because this isn't what you wanted out of the new iOS 7 game controller initiative, keep in mind that it is very likely that this is a super rough first run prototype. Secondly, if the iPhone case, charger, and overall accessory market is any indication, it's not going to take long to be flooded with controllers of all shapes and sizes. This is just the first "confirmed" shot of one.