I've had my Icebox for almost 3 weeks now and no scratches on the Iphone from the case. I guess it depends on how you open up the case and remove the iphone from it. I posted here on this thread before, a video link on youtube on how to remove the case easily and not damage your iphone. Check it out.
My only gripes is the back of the case is not scratch resistant unlike the front of the case which up to now still doesn't have a single scratch and not even a hairline scratch. But the scratches on the back of the case is more of hairline scratches so it's not that obvious plus I don't look at it everytime anyway so it doesn't bother me, better the case than my iphone