The Blaze Mobile Wallet uses a system of stickers that are embedded with a radio frequency identification (RFID) tag that is linked to a credit or bank account. This allows people to wave their card, keychain or phone over a merchant terminal at any place that accepts the RFID system. The idea of mobile wallets are already quite popular in Japan, although the system there depends on chips, not stickers.
http://www.blazewallet.com/
Article from today's NY Times:
http://bits.blogs.nytimes.com/2009/04/01/attacking-the-mobile-wallet-gap/


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