*Yawn*
Anthem Vault plans to launch a gold-backed crypto-coin in May. The bet is that the coin—which is redeemable for 1 gram of gold at the market price—will be a big hit with investors who are tired of bitcoin's wild ways.
Only until the backing entity hits financial difficulties (doesn't generate enough profit, some exceptional losses, hacking, insufficient network etc), which statistically is very likely. And when that happens bitcoin will look like a poster-boy for stability compared to their new crypto.
Also, it's not really that revolutionary. You can already use bitreserve.org, transact with BTC for convenience whenever needed but keep your holdings in either BTC/USD/Gold/Silver+other metals, whichever you feel is best.