Testing out the device at Logitech's Newark offices, we were surprised how out of the way its buttons were. While the cradle does make the iPhone about a third taller, it doesn't obstruct access to the screen when held vertically. Better still, it doesn't feel particularly awkward to hold the docked device up to your ear. It still won't fit in your trouser pockets, but at least you won't have to fumble with undocking your phone if you get a call mid-game.
Of course, this usability comes at a price: the gamepad conforms to Apple's simplest gamepad standard. Aping the classic layout of the SNES controller, the PowerShell lacks the dual-thumbsticks required to make the most out of games like Dead Trigger 2. That said, what it does have is very responsive, and pops with the satisfying tactility of the gamepad it emulates. The base unit is designed specifically for an iPhone 5 or 5s, but it comes with an adapter for the 5th generation iPod touch.
All said, it's a solid little gamepad, but it does have one other oddity: plugging headphones into the device requires a strange angled adapter, which snakes through the gamepad's case to the iPhone's native headphone jack. Weird. The PowerShell Controller + Battery hits BestBuy and the Apple Store today, and will roll out globally in December. The price to get in the game? $100 (£90 in the UK), minus a penny.