iOS 7 runs like a dog on my daughter's iPhone 4. She would love to go back to iOS 6 and have a device that isn't frustrating to use. There certainly is no excuse for stopping downgrades for wifi only devices such as the iPod touch or wifi only iPads. It becomes a little more problematic with cellular device due to baseband firmware but nothing insurmountable.
10/18/13 at 2:45pm