The solution: A replacement cover, which just costs 40 cents and the dispatch from UK to Östrerreich only 3 EUR -> that's amazing!
The delivery is after 5 days from UK arrived in Austria at my house and the HTC Desire looks like new.
There is no orange sign on the cover, as some wrote in his recession, although I would have been the price for that matter.
Just a perfect performance, both product and delivery have worked excellent and were extremely favorable.