Is Ghost Armor hype good for my Nexus 7? Just got a Nexus 7 last week (damn it staples),  and it smudges a lot on the screen, using eyeglass cleaner several times a day to get it off.  Would like a nice screen protector that stops smudging and scratches,  and the one I see the most support for is Ghost Armor. Is it mass mindless hype or is there a better option? 