1. One of the terms of service is exclusivity - if you use CurrentC, you can't use any other kind of mobile wallet system.
2. It is more like a debit card than a credit card - the money comes directly out of your bank account.
3. As such, it has none of the legal protections that a credit card has. With a debit card, pretty much all banks offer the same protection on debit cards anyway, because it's good for their business. CurrentC won't be run by banks, it will be run by some of the largest retailers in the country - Walmart, etc. None of the political pressures that keep banks on the straight and narrow apply.
4. CurrentC requires - cannot possibly work without - that you give the retailer all the information needed to take as much money as they choose directly from your bank account. These are the same retailers who have had hundreds of millions of credit card numbers stolen from their servers in the last couple of years. They have proven, conclusively, that they cannot be trusted.
5. CurrentC is about more than just transaction fees. It is also about turning the customer into a product - they require a lot of personal information that is completely irrelevant to the transaction - like health information (which they are also incapable of protecting) - to set up the account.
6. CurrentC is based on QR Codes, which is just stupid.
I'll go back to carrying cash before I use a mess like that. Or barter. Or growing my own food on a mountain top somewhere.