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Where should I go to look if they have them in stock? Do all the stores activate it at the store?

www.apple.com

Seriously, I live in Baltimore and called every store (Best Buy, AT&T, and Apple) in a fifty mile radius and everyone is out of stock. More upsetting is that they receive blind shipments from Apple so they could be getting a thousand the next day and not be able to tell you.
 
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Your best bet is to call the stores where you live, and ask.
 
go to your nearest apple store and if they don't have any in stock, place a reservation. i live in a medium sized city and my reservation came in less than a week
 
I randomly went to the Apple store in my area last Saturday to check out display models and place a reservation if they didn't have any in stock. Surprisingly they had quite a few in stock because iPhones were flying out of the store and I was still able to pick one up. A week later my sister tried to get one from the same store and 5 others around my area and everyone was sold out. I guess it's just luck of the draw.

Try going to an Apple store first then order one if you they aren't in stock.
 
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