While most of us consider flying cars something that would be cool if they were real, Uber is doing slightly more to make it happen. As profiled by Wired, the transportation company has released a 99-page whitepaper (PDF) titled "Fast-Forwarding to a Future of On-Demand Urban Air Transportation." Does that mean Uber is building flying cars to go along with its self-driving test mules? Nope, but in case someone else wants to do it, Uber is lining up to help make it happen.