I have to admit that I quite like the idea of body modification, but at the moment it's still too new a practice to be worthwhile for me. Sure, people can do some cool things with their bodies, but very little of it is that useful yet. Adding a nose ring, some silicone horns or some scarification? Meh. Call me when there are LCD tattoos, implantable mobile phones and sub-dermal pockets. I really can't see it being worth the hassle, expense and discomfort of having one's body cut apart if there's no practical benefit.

One thing that did catch my eye was implantation of sub-dermal magnets on the finger tips, which allows one to sense magnetic fields, including those of electrical wires. Another thing that struck me as useful was a measurement tattoo. I'd have to get mine in millimetres, though, which would probably require getting a reasonably good tattoo artist if I want it done accurately.