Sure,

I'll collect georeferenced��data in a mobile app, which I'll later have to group each one according to whether they fall inside a certain polygon (geopolitcal boundaries, like city, district, province, etc.).

I could also geocode the coordinate and store all that data (city, district, province, etc.), and then just group by each of these. And then I'll have to plot that data on a choropleth map.

But I'm asking to know if somebody has somehow mapped smalltalk geometry objects to the typical geometry object of PostGIS. Something like PGPoint, PGPolygon, that can "translate" themselves from/to string literals.