[hangonhn]

LOL. I'm actually on the reverse side of you. I heard about PostGIS and never knew MongoDB can be used for spatial queries. The main appeal to me is that since I need SQL anyways, PostGIS would be a simple add-on instead of having to manage another datastore. I guess my choice is more of an accident of history than any specific reason. Had I started with MongoDB first, I think I would have gone your route as well.