This christmas I received something very special from Paul Ramsey and Even Roualt
as detailed in Foreign Data Wrappers for PostGIS.
It's been something I've been patiently waiting for for 4 years. I think it has a few issues I'm working to replicate, but overall it's much faster than I expected and pretty slick.
So why is ogr_fdw so special, because GDAL/OGR is an avenue to many data sources, NOT JUST GEOSPATIAL. It's the NOT JUST that I am most excited about. Though the focus is geospatial you can use it with non-geospatial datasources,
as we described a long time ago in OGR2OGR for data loading