"But if I press the power button before 10 minutes it should not lock the screen. This is how iphone works."
This is not true of iOS. If I set auto lock to 'never' and then press the power button then the phone does lock.
I agree with Iain "I personally like the phone locking straight away when I press the power button." There should be a quick and easy way to lock your screen, should you not wish to wait 10 minutes (or whatever has been set) and the power button is a good way to do this.
"But if I press the power button before 10 minutes it should not lock the screen. This is how iphone works."
This is not true of iOS. If I set auto lock to 'never' and then press the power button then the phone does lock.
I agree with Iain "I personally like the phone locking straight away when I press the power button." There should be a quick and easy way to lock your screen, should you not wish to wait 10 minutes (or whatever has been set) and the power button is a good way to do this.