Swiss Virtual Globe..

OpenWebGlobe: Open Source Virtual Globe using WebGL

from Slashgeo

The Geomatics Engineering departement at the University of Applied Sciences Northwestern Switzerland is now developing OpenWebGlobe for WebGL. The OpenWebGlobe SDK lets you create your own virtual globe applications. You can develop your new application in your favorite language like C++, C#, Visual Basic, Python. A preview version of the WebGL version (currently Firefox 4 only) is available at http://wiki.openwebglobe.org/doku.php?id=webgl

It looks amazing and it is an open source project (MIT License). It is already very promising for a pre alpha version!