"All set"? Hardly. You lock it once, but then you fidget and roll over. Oop, need to unlock. So now you have to double-press and try and work the task bar upsid

"All set"? Hardly. You lock it once, but then you fidget and roll over. Oop, need to unlock. So now you have to double-press and try and work the task bar upside down to unlock, then chase the lock button round as the screen rotates to lock it again. Move again? Same daft dance. Compare to now, where you can unlock and relock the device while you roll, without looking at the screen.