pys60

I've just released some "proof of concept" code at http://drupal.org/project/whereis, it's an application that runs on your Symbian phone (Nokia S60), queries your GPS for your lat/long, and sends your coordinates to Drupal using XMLRPC.

At the moment, Drupal will receive a node id, latitude and longitude, and it will simply update the location-enabled node with the new coordinates.

This is all at a very basic level at the moment, but in the future it opens up many possibilities - think Google Latitude style functionality for Drupal.