Art Wildman wrote:
> As a scientific community, I would presume all GIS Linux applications 
> interest us. May I recommend supporting a Linux port of NASA WorldWind...
> http://www.worldwindcentral.com/wiki/Mac_and_Linux_Port_Collaboration
> ...without beating a dead horse & starting another comparison thread 
> (there are many already).
> http://lwn.net/Articles/187691/
> http://www.worldwindcentral.com/wiki/Google_Earth_comparison
> "While World Wind is open source (released under the terms of the NASA 
> Open Source Agreement), Google Earth is closed source, with all its data 
> (3D buildings, maps, street plans) and code being copyrighted." - 
> http://en.wikipedia.org/wiki/NASA_World_Wind
> 
> http://worldwind.arc.nasa.gov/
> http://sourceforge.net/projects/nasa-exp/
> 
> -Art@JAX


Another alternative for GNU/Linux is WW2D which is based on World Wind data: 
http://ww2d.csoft.net/


As for World Wind, I do not expect to see a GNU/Linux version soon. It is written in C# 
and Managed Direct X.