New features are exclusive to United app and include personalized, turn-by-turn directions to connecting gates with estimated walk times, real-time flight status updates, tips for longer layovers, and a heads up if United is able to hold the plane for those with an extra-tight connectionFeatures are an extension of airline's ConnectionSaver back-end technology and provide customers full visibility into connecting flight status During spring beta test phase, more than 350,000 customers used new features, ach ...