You do understand that "shipped" is completely different from "sold," right? You seem to be saying they're the same thing. I can easily see Samsung shipping 1 million units to stores, and that doesn't mean they've sold anywhere close to that many.
Looks like a Samsung exec
came clean and did confirm the now 2 million number was purely shipped to vendors, while end user sales are "quite small".
This may lead to some pretty good discounts soon for a Galaxy Tab, especially with news coming out about Honeycomb now. I'm surprised Samsung doesn't maintain a smaller channel inventory with their general consumer electronics experience.