there seem to be especially interface for 5.x GRASS even in the wxGRASS6 (i.e.
sites...). It is certainly orientated around sites data
updating/interpolating/manipulating, eventhough it has other stuff.
I could run it after a grass63 -text and getting into an existing location.
This said a first guess is that there could be some useful code for DB
connection management and other monitoring of what is in a postgres DB.
the Working region dialog maybe useful to modify directly pixel resolution or
other g.region options...