I have XO skin on my, i will say its better then zagg, it was easier to install, i don't have no color effect. Does have that rubbery feel to it, but i got used to it. So overall i am very satisfied with XO skins. Paid like $11 for it, which is not bad at all.
On my Droid, i had the boxwave and still do, it feels like your touching the real glass, no rubbery feel at all. Its dry installation. If somebody has this on their nexus please do comment and leave your review.
Boxwave for Nexus