I saw one on eBay. Imo it looks dumb because your just end up seeing the battery and SIM.
if im wrong tell me. I'd ratter be correct then live life being mislead.
Phone: HTC One m7 Tmobile root stock
Other Phone(s): T-mobile G1 < Htc Vision G2 < LG-P999 G2x < T989 S2 , HTC One m7 < Soon Note 3