Comment on Could a Pending Amazon Patent Doom Coin’s All-in-One Payment Card?parentComments−gkoz12yPretty much the same thing for SIM-cards has been around for years: http://en.wikipedia.org/wiki/Multi-SIM_card
Comments
Pretty much the same thing for SIM-cards has been around for years: http://en.wikipedia.org/wiki/Multi-SIM_card