Taking phone photography seriously is certainly possible. Short of tacking on a slightly ludicrous add-on case, however, you're normally stuck with whatever lens the phone designer deems fit. Unless Apple uses technology from a very out-of-left-field patent application, that is. The invention would make an iPhone's back panel removable so that owners could swap out lenses like they would with a DSLR or a mirrorless camera. Apple has even raised the possibility of a panel with two lenses built-in at opposite corners: to switch to a telephoto lens or a different filter, you'd only need to flip the panel around to use the additional glass. It's all quite wild, although it's for that reason that the patent might never get used. The company isn't a fan of replaceable parts, after all. But if the photographer for your future wedding shows up with nothing but an iPhone and a bag full of back plates, you'll know why -- even if you're still left scratching your head.