The way we pay has changed three times in the past few thousand years. From coins to paper notes to plastic cards. Now, a mobile application developed by Google only for Sprint Nexus S 4G allows the user can make secure payments fast and convenient by simply tapping the phone on a pay-pass enabled terminal checkout. Google plans to develop this application for more mobile phones. Google Wallet, allows the user to use the mobile phones and enhance in-store shopping experience and thus helping bridge the gap between online and in-store customer interactions.