I'm a great fan of Celestia and Mojoworld. Though I'm not a programmer, but
this idea came to my mind creating a mojo world today. I think it'd be fantastic if a mojo world could be implemented in Celestia, making it possible to navigate one's own world - say, watching Saturn under one's own sky.
I hope some great minds reads this and think about the future - Celestia Style!
If you don't know anything about Mojo, please go to:
http://www.pandromeda.com/
Thanks to the crew and supporters of Celestia!