Wow, when did you order yours at Adorama? Mine is still pending. (ordered on 02/24/2010)
You should call and complain because I put my order in yesterday afternoon (2010-03-09) @ 1309 PST and they shipped it today.
B&H changed their status to in-stock this morning around 0900 PST.
Edited: I just checked Adorama's webpage and it has the 70-200 2.8 IS II as in-stock and they took off the message about "pre-order" and "high demand... first come first serve". I'm betting they have your lens packed and ready to ship.