If you ordered one the first day, it should arrive in the first batch. Amazon usually delivers a month or two after Adorama, but it seems to improve a little each year. I think Canon gives priority to real camera stores.
I pre ordered the original 7D, there was a lot of hype, but I already had a 5D MK II, and it was a big disappointment compared to the FF. I fully expect the same thing, lots of hype, but, in the end, its a crop camera sensor and limited by the area of the sensor.
How is Amazon not a real camera store? They sell a ton of photography gear. In fact, they have more options than any local camera store in the Phoenix area. They may not quite have the selectivity of B&H or Adorama, but I guarantee you they are more of a camera store than the vast majority of camera stores (what you think of, at least) out there.
To me, a real camera store has at least one pro or knowledgeable person that can answer questions, demonstrate a camera, and intelligently discuss your needs. Even Best Buy has some help that knows what they are doing. Amazon, Costco, Walmart, Sams, and the like just push merchandise out the door. They are not Camera stores, they do not hire photographers.
The point is that just because Home Depot sells a zillion toilets, for example, they are not a plumbing store, they often stock the wrong parts for the job because the store buyers just buy what the manufacturers sell them for the lowest price. I had to redo my water well system recently, and went to Home Depot to get a pressure switch and a pressure relief valve. In their well section, they stock this stuff, the wrong type of pressure switch, and a pressure relief valve intended for air compressors, not water systems. Its dangerous when they sell you a 250 psi relief valve when it should be 75 psi, sometimes 100 psi. The wrong one could cause a disaster.
You might read this thread about the 5D MK III's and Amazon pre-orders, its a story repeated for each pro or semi pro new model. http://www.canonrumors.com/forum/index.php?topic=3808.msg94958;topicseen#msg94958