Another Apple innovation-in-the-making has surfaced from the depths of the USPTO. This time, it's a different take on the magnets inside the iPad, which could expand the possibilities for smart-accessories. Currently, the magnets inside the iPad are only used to anchor covers and cases to it, but Apple's engineers can't stop here. The proposed "keyed magnetic structure", which is a specific arrangement of magnets, can be positioned on any side of the tablet. It can be deployed alongside traditional magnets and electromagnets that can receive input from the operating system.