Contributing KML gx:Tour and LineString support for Cesium)
Our enthusiasm about combining aviation and high-end online technologies resulted in our contributing to the WebGL-based Cesium virtual globe project, to allow us to visualize actual flight tracks that are being flown in real-time by people. This allows to look at a real-time or recorded flight path in a simple web browser (no additional software needed) in full 3D glory, including photo-realistic terrain & the awesome shapes of the mountains.
For a demonstration, point your browser to: http://files.euedge.com/flight_tracking/ - to re-live a wonderul flight path from Zürich to Locarno via the Swiss alps, touching the Gotthard pass and the beautiful mountain of Matterhorn - the real-world inspiration for J.R.R. Tolkien's Misty Mountains in Hobbit & The Lord of the Rings. You can verify the realness-factor of the rendering by looking at GoPro recording of the original flight here: http://akos.maroy.hu/2013/08/12/a-flight-above-the-swiss-alps-video/ , with static pictures here: http://akos.maroy.hu/2013/08/12/a-flight-above-the-swiss-alps/
Currently we're wroking with http://EuroFPL.eu/ so that real-time flights whose flight planning is managed by their service can be tracked live. For a random demonstration of a real-time flight, see here: http://files.euedge.com/eurofpl/