My iPad 4 arrived today and I purchased a Power Support protector for the front of the iPad. I also bought a Smart Case for protection. Does the Smart Case make any back protection redundant, at this point? I'd like to keep the iPad looking in tip top shape, so if I decided to avoid putting some film protection on the back, would I be alright? Or is it still prone to scratches, etc.? Also, if protection is necessary, does anyone have any recommendations for any dry application protectors? Thanks!