I'm less worried about the annonymity aspect than the security aspect. The reported Mondex approach is less than impressive. The major problem with DigiCash is the patent portfollio. I don't much like the idea of David Chaum replacing the government as the controller of the money supply. Sorry, I just don't. The problem with Chaum's work is that it is unbalanced. He considers only the privacy aspect. The prevention of extortion aspect he does not consider. DigiCash have never addressed the baby-napping protocol problem as far as I am aware. Governments have certain rights in our society that individuals do not. This is justified by their being democratically accountable. I don't think we should readily agree to surrender those rights. Do you want the world of the future to be controlled by Bill Gates, Ted Turner and David Chaum?