I love this story about implanting RFID chips. It's the start of a slippery slope, but I'll sign up for the ride!
There are a lot of philosophical arguments about ID cards and personal freedoms, but when it comes down to it, databases probably already know enough about you for it to make little difference.
We are all publishers of information, how much we let out and to whom should be more controllable, and that is where there should be more effort. Not in banning RFID implants, but allowing us to determine what is published to whom.
My long standing strategy fof Mobile operators (and fixed wire too, for that matter) has been to own the identity and authorisation pieces, yet it is Microsoft that is one of the primary movers here (read this for their view, it's surprisingly open and...well...good! - did I really say that!).
But back to RFID...Imagine combining this with mobile access terminal (ok, a phone!), you have a full personal POS terminal. The RFID can tell the vendor the relevant address to authenticate with (ok, the phone number!).
There are some who still think of holding the balance or rating on the handsets, but that is akin to keeping your money under the bed. People have infinite patience when cracking a safe that is sitting in their livingroom. They have rather less time on a central system.
One thing about the article on RFID. did you notice the word "revellers"? this belongs to a sub-class of words that are only used in journalism! Since when do people say "I was at a party last night, loads of revellers!". Any others people have noticed?