Hey guys just to let you know, I had Incipio Feather for iPhone 3G and it scratched the hell out of my phone. You will need to clean out your phone regularly of lint/sand/dust from pockets etc it used to get all sorts of stuff in it.
It also cracks easily if you need to take it off and on to clean it. And trust me you need to clean it often because if you don't the hard plastic material get's things behind it that will scratch the shi* out of your phone.
Since it had a tendency to crack the good thing is they give you a 1 yr warranty and are very good with customer service. They will return you one if you ask and send in your old. Only issue is this takes time. and time is money....
It did a good job of keeping my phone from breaking when dropped close to grown though.
That all being said this is a new version so maybe they have made changes to it. But I was very happy with my Incipio feather for several weeks before I started noticing it's long term effects.