I don't understand why does yellowing bother you so much, ppl?? And *removing* layer of plastic seems much worse to me than yellowing. IMHO, much better option would be to use some kind of paint, especially the one that could be easily removed some day.
Because, you might regret it. For eg, I'm sure that some people towerising their A1200 and A4000D would now prefer original case.
