I have a 8 on order for collection next Friday. I am going from a 6+ so it should be a decent upgrade for me. Lots of people are complaining that it (the 8) has the same form factor as the 6, 6s and 7 but one of the things I am most looking forward to is the glass back. I am hoping the back is scratch resistant so I don't need to keep my phone in a case to protect it. Can anybody confirm?