Tapatalk upgraded theirs to work w/ iPhone 5 today. So if you use that to access the forums (it's exactly the same thing) it'll be full screen.
Is this a screenshot of the Tapatalk or iMore app? Because Tapatalk is fine for me after the update, it's the iMore app that still displays the bars on the top and bottom of my screen. I even deleted and reinstalled the iMore app, but the bars are still there and there hasn't been an update.
Sent from my iPhone 5 using Tapatalk