Got my dongle. Immediately put it through the paces. Went from getting an unstable lock after 40 seconds and 400 meter accuracy to a stable lock in 8 seconds with a 7 meter accuracy. Tried it in the car and it stayed glued to the path generated by Google Navigation. I also found out that the dongle's lock switch doesn't need to be lock position for the dongle to work, unlike what others have reported, but because it isn't spring loaded, you do need to make sure to lock it or it may fall off the connector.
For the people who is having trouble with FedEx showing the shipping label as printed but not shipped... Have you tried calling the Asus eStore's customer support? My packaging says that it was shipped from the Asus eStore, so maybe they might be able to verify the status of shipping. Their customer support number on the website is 510-791-3705. The number on the packaging is 510-739-3777. It might be worth a shot.
~Azrael's Kiss~