Put this on Github as the "rails3" branch (https://github.com/jnunemaker/mongomapper/tree/rails3) changes how MongoMapper's connection is provisioned. Didn't see this anywhere after doing some google searching. Maybe someone else will get some mileage out of this. For the salient details, see https://github.com/elight/mongomapper-rails3-branch-example/blob/master/config/initializers/mongo.rb -EL
elight/mongomapper-rails3-branch-example
Skeleton app using the latest from mongo_mapper rails3 branch
Ruby