Under the agreement, AT&T will equip more than 19,000 Delta flight attendants with Nokia Lumia devices powered by Microsoft Dynamics mobile point-of-sale platform on Windows Phone 8, with a Delta-specific customer experience developed by Avanade to operate over Wi-Fi and AT&T’s 4G LTE Network. Avanade will provide Delta with ongoing support, maintenance, and application enhancements for the next three years. This in-flight solution to sell food, goods, and upgraded seats to passengers aligns with Delta’s commitment to continually improve the customer experience.

Near real-time credit card validation, which enables passengers to          purchase food, drinks, and upgrade to available Economy Comfort seating          in-flight. On-board Economy Comfort upgrades will begin on          transcontinental and international flights before being offered on          flights across Delta's system.      --  Faster workflow and ease-of-use by unifying all flight attendants on           Nokia Lumia 820 devices. In addition, this agreement will see Delta Air          Lines crew expanding to the newest Nokia devices over the next three          years.      --  Faster transaction times, expected to be significantly improved, will          allow flight attendants to conduct more transactions and better tend to          passengers' needs.