News broke that Google’s Help section had a new, discreet addition: the announcement of the Google Wallet Card. The site slyly kept the announcement subtle, but it certainly did not take long to be noticed. Google says that devices that are running Android 2.3.3 will soon be able to use an actual payment card with the Google Wallet app.

Investors are quickly bailing as Groupon experienced a new closing low on Friday, with shares down 5% at $4.75. Their stock-price declined even more last week after their second-quarter results reflected a decline in customer growth and revenue.

Google Wallet has been sent to Sprint customers this week, with more carriers to follow. With the Google Wallet mobile wallet app on your phone, you can pay with Google Wallet at any place that has a MasterCard Pay Pass system. The Pay Pass wireless point-of-sale terminal, which many merchants now use, can accept various forms of wireless payment transactions, including a Google Wallet payment.

Google today announced its new mobile wallet technology, the Google Wallet, which allows users to store, carry and pay with their credit cards using their Android phones. The Google eWallet uses NFC (near-field communications) technology by including an NFC chip on those phones that are enabled with Google Wallet. MasterCard, Citibank, Macy’s, American Eagle and Subway have already signed on, to name a few.