Lots of excitement
There is a ton of excitement for the new 5D Mark III, I'd still call the response overwhelming and completely beyond whatever I expected.
Lots of places in the UK and Asia have reported having stock. I've even seen stock in Canada. Lots of smaller retailers are also emailing with stock notices.
I apologize I cannot link every store that has copies of the camera available for sale. I can't be responsible for the crazy amount of phone calls a retailer would get because of a link here. I appreciate every retailer that has let me know you have stock, and I highly doubt you're going to have much issue getting rid of your allotment of 5D Mark III's.
B&H and Adorama both assure me shipments are going out this week, and both have a lot of inventory coming in. Amazon is a bit faceless and I have no idea what they'll have for stock. I do expect a lot though, especially since they haven't stopped preorders.
I'll update as I know more.