We're a small startup working on a project for tracking and sharing the location of UAVs and drones in real time via the web. Flights are tracked by attaching a smartphone to a drone and distributing a URL which lets your friends follow your flights in realtime on a map in a web browser.
We've been focused on building and solidifying a backend system and API to support our iPhone application. (an Android app is in the works) We're interested in feedback from the community on what we got right / wrong and where we should take the project.
Take a look at http://droneos.com and sign up for the beta if you are interested in trying it out. We are at SXSW this week if you are interested in meeting up or DM us at @droneos via Twitter.