While it sure looks like fun, it doesn't really seem useful. All the use cases the author makes are more gimmicks than anything really useful. Actually, the thi

While it sure looks like fun, it doesn't really seem useful. All the use cases the author makes are more gimmicks than anything really useful. Actually, the thing influencing compasses seems really annoying. You'll never be able to have your smartphone show the correct walking direction while holding it in the hand with the magnet.