I have been holding off upgrading to ios8 on my iPad2. However, after a friend advised to do so, I decided to check my usage space and it appears that the update 8.1 has somehow automatically downloaded (with an option to delete) and all I would have to do would be to instal it. I have a mind to go ahead, but will it be safe? - possibly downloaded piecemeal, so to speak whilst I was unaware. I have not got a PC, so the iPad is rather important to me. Any advice would be very welcome.