This is big, folks. Google Wallet finally has been opened up to more payment methods. Mainly, it now works with any credit card and lists credit cards previously tied to your Google account. It's taking a new approach to mobile payments, moving everything into the cloud and off your device. That means a couple things. For one, you'll still need a PIN to use Google Wallet, and Google (and us as well) recommends you have a lock on the entire phone. But should things go awry, you can lock and remotely disable Google wallet on a lost phone. As Google points out, that's not something you can do with your leather wallet.
After that, alls you need is a Google Wallet-compatible device (here's the list of 'em), and you're off and running. No more exclusives. No more errors. So head to the Play Store and smash that update button, and be sure to let us know in the comments how it goes adding cards to the app.
Source: Google Commerce Blog