Probably the best designed gaming controller for the iPhone we’ve seen so far, the Logitech Powershell is made solid, with a rubbery surface that’s comfortable to hold. It’s also sturdy and compact enough to be stored loosely in a bag or pocket. The Powershell is built to slot the iPhone directly inside, without having to pull the controller apart to fit it in (unlike the Moga Ace Power controller). The phone retains all of its independent functions while attached to the Powershell, and the headphone jack and lock button remain attainable so that users can listen to music and lock their phone at all times. Despite its great design, some reviewers have criticized the Powershell’s single D-pad and lack of analog sticks. At $69.99, it’s a must-buy for part-time iPhone gamers.