What this is being used for (Score 1)

This is primarily being taken up by the material handling industry as a means of stock/inventory movement and control. Its primary purpose is finished once the tyre is installed in your car. (Return visits to the manufacturer or an agent not withstanding). Any usage whilst the product is attached to your car is just a bonus (or a problem depending upon your point of view). In the next few years you should expect to see RFID chips in anything that currently displays a barcode including clothes, shoes underwear etc etc. Gillette has ordered half a million of these chips - if it's cheap enough to slap on a razor, it's cheap enough to slap on just about anything. As another thought, one of the primary VCs of "Alien Technology" (I'm too lazy to track down the URL) - the firm that's leading the pack here and incidentally the firm used by Gillette - is one of the worlds largest barcoding and labeling companies. Food for thought. (Hey, even those annoying individual stickers on apples could have a chip in them - that really is food for thought)