Thanks. Yes, crosslinking between fiat, and, better yet, precious metals, is an eventual goal.
I'm thinking of maybe an open source, publicly auditable vending machine design which can dispense gold and silver coins in exchange for digital warehouse receipts purchased with Bitcoin. The vending machines could be located in places like Dubai where such machines already exist. The digital receipts can circulate, be split, and combined as a cryptocurrency, backed and always exchangeable for physical metal at a vending machine.
The real obstacle to viability is unfortunately the fiat component. Your idea nonetheless seems very sound.