Does your HTC Desire Z look like this ? The coating seems to slowly peel off the aluminium battery cover as you use it and, after a few weeks, it looks less than nice.
We’ve had an email in from Dave B who fixed his flaky rear panel with a scourer and some cleaning products but others appear to have just hidden the problem by using a cover to hide it.
Let us know if you’ve got the same issue on your Desire Z and whether you’ve found a fix! We’d also like to see your pictures.