Google is working on a mobile payments and advertising service based on NFC technology, according to Bloomberg Businessweek:

Google is considering building a payment and advertising service that would let users buy milk and bread by tapping or waving their mobile phones against a register at checkout, two people familiar with the plans say. The service may make its debut this year, say the two, who requested anonymity because the plans haven’t been announced. It is based on near-field communication technology, which can beam and receive information wirelessly from 4 inches away.

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