I still dont understand what GeoSpatial support and Map Reduce means. Anyhow, i'm excited to learn that companies are offering solutions for MongoDB, it gives m

I still dont understand what GeoSpatial support and Map Reduce means. Anyhow, i'm excited to learn that companies are offering solutions for MongoDB, it gives me more confidence in putting together something in MongoDB. I see they're also offering RockMongo GUI. Does anyone know how to get the interactive shell working as per the example on the main MongoDB website?