I'm getting tired of "guessing" if ios 8 will work on my iPad 4, running perfectly fine on 6.1.3, but now I am locked out of apps I want that require 7.0. I have full Applecare + on the machine and I'm seriously considering talking with Apple about replacing the iPad if it shows diminished utility after I upgrade. The problem of not being able to downgrade your iOS is enormous. If the iPad is bricked or slowed down, it just is not worth it. I don't appreciate being locked into an ios simply because Apple says "no downgrading". It cannot be a physical impossibility to downgrade if you don't like the performance on a newer operating system. Again, it CANNOT be a physical impossibility to downgrade your iOS. It has to be feasible; a flash drive is just a flash drive, old iOS's can be stored somewhere; is this just to force us to buy newer products?