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Can you add the photo as an attachement? Because it isn't displaying. I have only heard of the Apple peeling off on the 3G. That is strange it is doing it on a 2G.

I changed it to a link, since it's image shack. Let me know if it works now.
 
If it's just a cosmetic thing, I wouldn't bother. If it reall is glued, I also don't see how removing the back case would help ... I'd also recommend the tape option. Plus I'd be really interested in knowing how you got it to be that way, my 2G fell down so many times, and sure, the aluminium back has some scratches now (nothing major though) but the front is still 100 % fine.
 
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