The Internet giant Google is well know as being the primary search engine on the Internet and the definer of many web standards. The Big G isn't afraid to trek into new and exciting verticals. Google Wallet is one of those endeavors. Google states that Google Wallet has been designed for an open commerce ecosystem. Their goal is to eventually replace the cards that you keep in your wallet. Since Google wallet is a mobile application it can store as many cards as you want without having to carry multiple cards.