I think I solved it on my iPad, all I had to do was close the App Store in the multitasking window and it started to behave itself, which is strange because I had already restarted and reset it by pressing and holding the home and power buttons and that never worked
I have tried doing that but it only worked for some time. Now I have turned all background data off on app store and for now it's working. I have done some logging for Apple and som technical adviser will lock at it. Hopefully they will find something. When I talked to Apple it felt like they did know about this issue, he said that not all phones are affected of it.