How is your experience with ios 9 GM on iPhone 4s and iPad 2? Apple said that they will make the iOS run smoother on older HW too but I do not see that. On the contrary on iPad 2 it's literally a nightmare. Sluggish and slow. It's much slower than on iOS 8 for me. On the iPhone 4s - it's running a little bit better - I get more battery life - like half day more compared to the last Beta. Compared to iOS 8 it's much slower. I do know these are old HW - I was just expecting a fix on these devices.... until I will afford to buy newer iPhone and newer iPad... Can you share your experience with any of these 2?