Apologies if this has been asked here a lot already (I have a feeling it will have, although I haven't been able to find a similar thread during a quick search). I have been in the US for a couple of weeks and have been waiting to get back to England to update. Whilst I've been here I've read about a lot of people losing all their apps in the iOS5 update for iPhone 4 and I wanted to avoid this happening. I'm going back home tomorrow and will be updating on Saturday. Can anyone give me any advice how to achieve a problem-free upgrade? Many thanks for your help.