A shame that it might not ever happen because they are having trouble getting the license for the game.  It looks like it might be fun:

http://www.youtube.com/watch?v=etGWugTbGwk

Anyone remember the NES Ghostbusters
That was tough! Anyway, I think a new GB game would be great!

cheers,

-avatar!

seems a little bit darker than i remember from 20 years ago...

Looks like the game might be back in development:  http://xbox360.ign.com/articles/761/761229p1.html