I don't know if this is old news but I didn't know about it.

If you get the latest Google earth app, you can look up at the night sky as well as down at the earth. I've only played around with it for a few minutes but it seems pretty neat.

http://earth.google.com/sky/skyedu.html

James

You can also download extra images/features for Google Sky from HubbleSite:

http://hubblesite.org/explore_astronomy/gsky/

Chandra sky tour for gSky:

http://chandra.harvard.edu/about/ge_tours/skytour/