The Threat Level blog has just posted an interesting thing. It's a new toy from Mattel. A security key fob in barbie form. They have apparently created two 'chat' systems. The one is open for anyone to chat with anyone - however, one may only communicate via pre-written phrases. How this is supposed to work I have no idea. I can only imagine a board-room of middle-aged marketroids attempting to adequately encapsulate pre-teen english. It would optimistic to say that I expect conversations held via this system to be stilted. Bizarre and unintelligable would perhaps be more appropriate. There is a second system, that offers greater freedom and flexibility. This system only permits one to speak with individuals one has met in person. The 'token', in the form of an MP3 player, is placed in a friend's dock, it authenticates, and you may then use the second system to chat with each other.
This does pose some interesting ideas. Cryptographically secure chat, using (real) two factor authentication. The anonymity of the internet can at once be extremely valuable, and dangerous. Both are important. The second system does have it's own caveats, however. It relies on a whitelist of words. One may only use the words that have been whitelisted. This in itself should provide for peculiarly stilted conversations. They are quick to reassure the users of this system, saying "But don't worry -- we're always adding cool new words!" I have to admit, I find that quote to be hysterical.