But next time you try to go back to the app it is still borked.
This has happened many times with beta 4.
Safari has the issue where it is just locked on a screen and does not respond to anything. Only a reset fixes it.
So instead of allowing you to kill misbehaved apps you have to reboot the phone every time. This sucks balls. Especially in a beta OS. So you can't kill buggy apps and have to restart the device. This is brilliant. Give that guy a raise for this brilliant idea!
wtf.
Well, maybe I'm wrong.
But again, it's a BETA!!!