A Chilean website Panchovera.com has spotted that Google Maps in Chile now has geocoding, which means that Google Maps can now find addresses in Chile. Panchovera has more details on the update (in Spanish).
These Chilean Google Maps mash-ups will benefit from this latest update from Google Maps:
GeoTurismo.cl - a tourism mashup for Chile
Portalinmobiliario - Chile's first housing mashup.
Santiago Metro Mashup - Here is a great transit and photo mashup for the city of Santiago Chile.
You can check which countries have map directions, geocoding, map tiles and business listings on Google Maps on this handy spreadsheet (although geocoding for Chile doesn't seem to have been officially confirmed yet).