iPhone protectors without the iPhone

So we all know by now that I have an iPod Touch and I have done a few things to it to make it my own. One thing that I haven't done but that has happened is the scratches on the metallic part of the Touch.I am not pleased about this at all. I did what any Apple supporter would do, I went to the Apple shop yesterday and I asked them if they had any iPod Touch covers/protectors. Low and behold, they didn't.What they did have was the iPhone cover/protector. Let me ask a question: Why do they sell iPhone covers if there is no iPhone in SA?Then, my next and most obvious issues is that if you can get iPhone covers in to SA then why, OH WHY, can't you get iPod Touch covers in to SA?And lastly I have a suggestion for Apple for their next range of iPhones/Touches: The front of the Touch is made out of a "scratch proof" glass substance, why not make the entire iPhone/Touch out if this substance. Maybe keep the metallic back part but cover it in a thin layer of the "scratch proof" glass?