They aren't saying they will be using gold bullion or coins at the WalMart, the closest to that is Idaho "Unless expressly provided by statute or by contract, no person or other entity may compel another person or other entity to tender or accept gold or silver coin or specie unless agreed upon by the parties"

Admittedly I'm a little dumb in this area, but it reads as though States will back their money with gold and silver, much the same as the Federal gov did with gold and silver certificates. Some mention something of electronic transaction with the metals to back it. They're all different but it feels to me like a step in the correct direction. Assuming the bills pass.

I could be misinterpreting this whole thing too.