Haptic tech is employed, for example, when your phone vibrates as you type on its touchscreen. Haptics deal with appealing to your sense of touch by applying forces or vibrations to your skin -- http://www.unwiredview.com.
Now here's the thing: Nokia wants to make sure you'd receive every call and, you'd know who's calling based on the vibrational pattern of your phone. How exactly?
If you think that every call is as important as the end of the world, you can sign up to get a ferromagnetic ink tattoo. The ink would first be exposed to high temperature to demagnetize it. Then you could apply, say, a Hello Kitty emblem on your bicep. The procedure is similar to normal tattooing, though the ink is different.
Cool? Not really.
Now that would be really cool.
Perhaps Nokia should use the patent-filling money to hire back those 1000 slashed employees.