I was wondering when this would happen. I thought it would be on the state level though. They're printing money like crazy and not even the boldest states seem to be hedging against the collapse of the dollar or inflation in general.
Like you inferred, it would be a great way to fight against fraud. Although I'm worried about the privacy from all the financials being broadcasted to the blockchain.
RE: MiamiCoin: Starting Another Phase In Cryptocurrency?