So... 27th of February came and went, and we are left now with:
http://www.worldwidetelescope.org/ [3]
And it will be Free !
Very Impressive!
Don't believe me, check out the TED Talk from Roy Gould: http://www.ted.com/index.php/talks/view/id/224 [4]
Links:
[1] http://pulse.veltsos.com/category/it/software/software/os/microsoft
[2] http://pulse.veltsos.com/category/it/software
[3] http://www.worldwidetelescope.org/
[4] http://www.ted.com/index.php/talks/view/id/224