GeoCouch, an extension of CouchDB to query Geo location
Geo + database = GeoCouch
2010 is not only the year of iPhone4, iPad, and Android, it is also a year of Geo location. Foursquare, Gowalla, brightkite, loopt. Facebook introduced the Geo location function. Twitter also has turned the Geo location lately.
For example, with this query:
It can return:
myhome 151.208333 -33.869444
GeoCouch is built based on Python, spatiallite, CouchDB. It is being led by Volker Mische, which is an open source evangelist, in particular for CouchDB.