I don't know exactly what your GIS needs are, but it might be worth seeing if MongoDB's geospatial indexing meets them if you are interested in querying free-fo

I don't know exactly what your GIS needs are, but it might be worth seeing if MongoDB's geospatial indexing meets them if you are interested in querying free-form data. http://www.mongodb.org/display/DOCS/Geospatial+Indexing http://www.mongodb.org/display/DOCS/Geospatial+Indexing http://www.mongodb.org/display/DOCS/Geospatial+Haystack+Indexing http://www.mongodb.org/display/DOCS/Geospatial+Haystack+Inde...