This is wicked cool and going to be really useful for us here at work. We’re having to track packages all the time with FedEx and UPS. Google is gonna make it easy on us.
All you do is enter a tracking number, and Google will provide a link to the tracking page for your package. It’s really neat and can search UPC codes, FCC equipment ID’s, Vehicle ID numbers.
You should check it out: http://www.google.com/help/features.html#number