Well, they must be cranking up the production line, because Microsoft Store Online no longer lists Surface Pro as "Out of stock." The listing now says "Order now for shipment by 3/12/2013."
I picked up mine on Wednesday of this week at the Microsoft Store in Bellevue, WA.
I happened to stopped by the store just to take a look at it, not expecting to buy one, when I asked the salesperson when they expected the 128 GB Pro to be back in stock. He said they had them in, and so I bought one.