People, please don't be ignorant. The procedure is quite simple (though I've only seen surgical steel implanted before), doesn't involve drilling, is reversible, and does not permanently attach the Nano to his wrist. When he gets bored with it he can remove the magnets and the holes will heal (though perhaps with small scars). And stop mentioning MRIs and airports. I have piercings and have never had a problem at any airports, and if necessary for an MRI the piercings could be removed.