One of the things that I find funny is that the magnets for the 360 camera and future accessories make it so the phone sticks to anything magnetic. When I do laundry, if I put my phone on the drier I have to pry it off a bit. They're stronger than you would expect. I just set it down on my Samsung tablet (with one of those rubber folding covers with the magnetic strips) and it stuck to that
That area can also pick up little bits of metal. I put a vinyl cover on the back, so I'm not too worried about scratching, but I can see how it would become a problem.