Samsung users will be able to choose PayPal, as their preferred method of payment in-app, online and in retail stores through the Samsung Pay mobile payments platform. Aeturnum helped build the PayPal mobile wallet when it was Paydiant, before the company was acquired by PayPal. The wallet, which works with both NFC point-of-sale systems and those using traditional mag strip technology, will now be available to users in millions of stores. For complete story.