Ride-hailing giant Uber has announced partnerships with vehicle developers and infrastructure providers to support its planned electric vertical takeoff and landing (eVTOL) flight demonstrations in Dallas and Dubai in 2020. Full-scale services are targeted to launch in 2023. At its Uber Elevate summit in Dallas on April 25-26, the company brought together some 500 attendees representing aircraft developers, technology providers, researchers, regulators and investors in a bid to kick-start …