The Girl Scouts may be a 100-year-old organization but it is also firmly planted in the 21st century now that the young saleswomen selling much-loved cookies are accepting payments via their mobile devices.

Office Depot is the latest big box retailer to test PayPal’s point-of-sale that lets shoppers pay for in-store purchases by typing in their mobile phone number and a PIN.

Imagine a world in which all you need before heading out the door to shop, grab a bite or catch a movie is your smartphone. That is right: no wallet, credit cards or cash required.

Maxim Integrated Products Inc. is suing Starbucks, Expedia, Capital One and Bank of the West, alleging these companies infringed several patents with their mobile payment apps.

Mobile payments service Tabbedout is giving merchants the ability to deliver special offers to app users to drive traffic and build loyalty.

Villa Fresh Italian Kitchen and the mobile payments app LevelUp are giving New Year’s Eve revelers in New York a chance to earn $10 worth of free food by using their mobile phones to pay for their food purchases.

Four in one consumers believe that mobile payments made through a carrier are safer than online credit cards, according to a study from PaymentOne and Javelin Strategy.

Starbucks has exceeded 26 million mobile transactions since the launch of its mobile payment program in January.

Google Wallet will be not available on Samsung Galaxy Nexus phones from Verizon, a development that impacts the service’s growth going forward if other carriers also find reasons to not offer Google Wallet.

Cantaloupe Systems and First Data are letting consumers use Google Wallet to pay for snacks and drinks at vending machines across New York, Washington and Chicago.