To me it's a XERO as Lauri says. There are many reasons....one of them, this being in one person's hands. The airlines will never agree, especially if this can be copied easily, so why tie the knot with him?
I do however see a future where luggage manufacturers will embed RFID chips in bags, where it will be owned by NOBODY, there will only be a standard on how it should work, and this will come from the airlines forming some kind of alliance to standardize this.