Granted, it'd take away a bit of the physical appeal, but would add a ton of practical appeal.
Of course, at that point, you're also looking at stickers and numerous screws too.
^^ Yep, that's pretty much what I was playing on. In the case of an iPod or iPhone, the battery cover would most probably be at the back, making it a whole lot more visible than on a laptop, which is usually sitting on a surface.