GameFly GameCenter mobile app launched last October, its creators promised to eventually bring its functionality into parity with the main site's user interface. Thanks to a recent update through the App Store, that future has been realized. GameCenter has been tweaked to allow GameFly subscribers to add titles to (or remove titles from) their GameQs while out and about.
A handful of additional UI changes have also been made to streamline the game-renting process. You can check out the app for free using the download link below.
GameFly GameCenter (free)