Whilst iOS's apparent absence of a Nokia-style 'profile' switcher to change your set of notification tones/volume has annoyed me for a while, last night it came to a serious head. I'm a light sleeper. At night time, I don't fancy getting woken by any of the countless emails to either my personal or work email (I have clients from around the world, so can expect them 24/7), so I put my iPhone 4 on silent. Last night my little sister thought she was being followed home; tried to call me for help; but I was asleep and couldn't hear her ring. Fortunately she was ok. Apple: Do I really have to choose between not being able to sleep for constant email notifications; or my sister potentially being raped every night when I go to bed? Of course the other solution is going through the menus and fiddling around with my email/text notifications every night. Hardly the 'sleek', 'efficient' OS Apple would like to think iOS is. Where is the quick profile switch option? Ancient Nokias do this no problem! I had a 'night' profile, which turned of all notifications - but kept my phone-call ring. Apple, this is an absolutely appalling, indefensible omission. I wish I could shake your new CEO to tell him!