I would love to see carbon frames, forks, and maybe even some components--stems, crank arms, for instance, have a scannable chip molded in. This could serve multiple purposes, a VIN equivalent for registration and tracking of stolen bikes plus date coding for warranty coverage, and give manufacturers an ability to verify genuine goods vs. counterfeit--a real situation in high end bikes and parts these days. Thought of it when I was sitting with one of our cats in my lap and realized that I could feel the chip under the skin on his neck and figured it couldn't add enough weight to a bike to notice even if one bike had half a dozen of them.