With the announced $280m acquisition of Paydiant, PayPal is sending a direct message to Apply Pay. Paydiant is the developer behind the mobile payment apps used by Subway and Capital One. Paydiant also provides the mobile wallet platform for MCX, whose members include many of the world's largest retailers: Walmart, Target, Sears, Wendy's, and Exxon. The deal is expected to close in late March or April.