I'm not sure what the release at Best Buy will look like for the Transformer. I work at Best Buy, and I've been very adamant about checking our inventory system to see if/when we will be getting the Transformer in stock. In our system I can pull up two expired pre-order SKUs, and a third of which is the actual unit. Advanced details on the device SKU shows nothing in any of my warehouses.
Obviously that's just specific for my district area and I can't speak for others, but with everyone else popping up with orders, I'm a little surprised nothing's popped up for us just yet.