Great that fMMS is now working as it should, without additional APNs etc. One idea to make it essentially better for normal users:

Make it possible to choose the default operator settings (http://wiki.maemo.org/MMS#List_of_MM...d_Providers.29) in a drop-down list (or whatever). We already have a lot of this data available, so this should be even quite simple?

Maybe the operator name could be even used to (try to) get this selection automatically - user would just confirm it? Configuring is the thing that most users really hate, no matter how easy it is.