I was notified by Atari that my order was shipped yesterday.
However, when I click on the "track shipment" link, it takes me to the fedex web site, and it says "invalid Tracking number".
No panic... I'm thinking Fedex needs some time to adjust their database. But still I start looking closer and the number doesn't look right. It turns out: MY ORDER WAS SHIPPED VIA UPS, BUT ATARI USES AN AUTOMATED SYSTEM THAT FEEDS YOUR TRACKING NUMBER TO FEDEX.
Sure enough, that same number, fed into UPS web site, tracks my shipment.
So if your tracking number is in the UPS format (9XX9999X9999999999), it's a UPS number.
Pretty dumb from Atari... I'm sure they'll have lots of people from Canada panicking and calling them.