No, that would be the equivalent of telling people that buying home and auto insurance are no longer allowed. What does need to happen is for CDS contracts to be traded on a centralized exchange so that there is greater transparency.
Instead of outright converting to another currency, how about buying options on other currencies? That way you'll have more flexibility to keep your holdings or convert later on.
I read an interesting article about how there are now websites that allow individuals to connect with each to lend/borrow money. With credit being "tight," I imagine that individual lenders will begin to fill in that gap left by the banks.
Government willl always be able to borrow money. Even after Argentina defaulted on its debt, there were investors willing to lend as long as the rate of return was high. The problem for us is that the debt will become unsustainable once 30 year interest rates go up beyond a certain point.
It's interesting how most of the comments on that article's page show a profound ignorance of how the markets work. It seems like most of them are supporting it because it "sounds good."