Yep, you can bet that Apple knew they could sell all the could ever make and then some.It's not all that shocking given that Apple announced a multi-country launch on the 16th. That is a first for the iPad. So clearly Apple has been cranking these out for a while to build up that much inventory. We are looking at combined 8-10m units being pre-sold this week and sold on launch day weekend. Pretty astounding.
As some have noted certain white models are "sold out" for launch-day delivery. I suspect the news of the new model is just starting to filter down to non-techs and that by the weekend preordering for all models will have ended.