One (very) long term project I'd like to do is to display 4x5 transparencies (B+W and/or chromes, 8x10 if I can get my hands on some cheap film), no projectors, just hanging a foot or two away from a white wall, with lights on the wall to sort of act like a lightbox.

I do like the broken-tablet idea, to cap it off you could even put facespace/instacrap/snapchat/whatever-the-kiddies-use-these-days logos around the borders, as a comment on 'disposable photos' or something.