Google’s vision of having cell phone customers buy stuff with their smartphones at cash registers is becoming reality. The Google Wallet app, which allows compatible devices to use their virtual credit cards to make purchases, has gone live. Visa and MasterCard are currently on board, and Google says future updates will include American Express and Discover.

The L.A. Times reports the app currently only works for Sprint customers, and only on the Nexus S 4G. Next year, more phones that boast the near-field communication (NFC) technology are expected to hit the market, and Google has estimated that NFC will become commonplace within the next three years.

Google Wallet opens for business, Visa gets on board [L.A. Times]

Previously: With Wallet App, Google Wants To Get Into Your Pants

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