Yeah when I had my iphone i had bodyguards on it (back and front only), shit was amazing, more grip, no scratches at all when i sold it, and the stuff doesn't get scratched like normal screen protectors do.
Galaxy s2 is f**king amazing at drops, have dropped it so many times around shoulder height, not a crack in the screen, only little scuff marks on the plastic
Yup, something tells me it isn't though, cause those bastards scratch so easily. IMO the glass on the back is a way of apple making more money on repairs.