Google Will Supposedly Add Physical Cards that Support Google Wallet
It looks like Google is planning something very big for Google Wallet. In addition to using Google Wallet to pay for purchases online and at retail through NFC, Google may start issuing physical Google Wallet cards. This information comes from a future version of the Google Wallet app that was leaked to Android Police.
The physical Google Wallet card will essentially replace whatever your preferred default payment is within the Google Wallet app. For example, if you have two cards set up with your Google Wallet account, you can make transactions