If you use T-Mobile G1, iPhone, BlackBerry, Nokia S60, or Windows Mobile smartphone, now, you can track Santa and his Reindeer with Google Maps for mobile directly from your mobile device. Just open Google Maps for mobile, and search maps for 'norad santa'. Once the tracking begins, you will be flown to Santa's most current location, according to NORAD radar. Note that you'll have to re-issue your query to see Santa's updated location. Santa doesn't take off until 12/24 at 3:00am PT.
Source:→ Google LatLong Blog