Advertising a "currency" and then delivering a "payment processing system" is fraud.
+1
Currencies: Bitcoin, Linden Dollars, US Dollars, Euros, Gold coins.
Payment systems : Bitcoin, Paypal, Dwolla, Facebook Credits, MintChip, and now Kurrenci
Some things are a currency, and some things are a payment system. Bitcoin is actually both, while systems claiming to be "digital currencies" like MintChip and Kurrenci are actually just payment systems for a specific currency (CAD and USD, respectively).