Yes, but the BTC infrastructure itself provides a cryptographically strong method of proving reserves. If a large nation decided to implement its own hybrid fiat/cryptocurrency, it would basically be an unstoppable juggernaut, assuming no one ever broke the crypto protocols in a widely exploitable way. (And even then, the fiat currency might survive.)
Agree'd. Although, to reach this conclusion, you have to first shed the commonly idiotic notions of anti-government anti-social stupidity, and recognize the utility of a public-private partnership.
Anyway, I think from a "infrastructure" point of view, BTC is not good enough yet. I'm finding proof-of-stake systems (peercoin / NXTcoin) far more technically useful than BTC... in particular, the fact that they're "greener" and don't waste electricity like the current mining rigs do.
The ideal system probably would be a decentralized proof-of-stake cryptocoin with regulated exchanges.
