check http://3d.luciad.com/

[Geoneer]

http://3d.luciad.com/

[Ysurac]

It's nice but this download really a lot of data and it's not real time (and opensource). It's difficult to do something like this in FlightAirMap, because I would need to generate the data on the fly and this can make lot of data. A project like this, not realtime, can generate precalculated data.