Sorry but I think you are talking rubbish. I own the new black iPhone 5 and I can tell you now that nothing is "rubbing off", its a solid device. There are 2 things going on:
1) factory damaged models due to lack of quality control
2) iPhones damages by users dinging them, dropping them, etc
There is no flaw here. This is just a case of bad quality control at the manufacturing plants. Nothing to do with Apple whatsoever. Previously if you dropped an iPhone you would get a smashed back or front. With the iPhone 5, you drop it you will get a scratch or a ding. No difference really.
I don't love apple, I almost bought a SGS3 a couple of months ago and I have previously owned a SGS2. With either of them, drop it and the battery cover will pop off and the plastic will likely get dented.
Once the damaged units have been filtered out and the manufacturing plants given a dressing down this will be a thing of the past. What you do with your phone beyond that is up to you. Now please, get a grip