fine, even if they make it better looking, I feel like you'd be possibly sacrificing performance to get the ability to customize. for example, does a bluetooth chip really need to be that big? etc, etc. also, i wonder how it'll deal with getting wet. my htc one got wet over the summer and it works fine. the cracks on that look like they would water through. although at the same time it would be easier to take apart and let dry.
but my point is, if they make it, i don't think it'll be among the best smartphones out there, just a gimmick.