I have followed this pretty closely yesterday and today. for example there were none in my area (4 hours out) of any color or gigs. then a couple of hours before stores opened there were some of 16, 64, and 6 or more hours out 128s also. This time I am just doing 2 hours out verses the 4 that i just drove a week ago to get the one i have now.
anyway a few minutes later they all disappeared again. and then a 3 or 4 hours later some showed up again. so i would go to istocknow.com and set up an alert for all phones you are willing to except and drive to go get.
how it works is you choose the phone type and then choose all the cities you are willing to go to. then choose your next type of phone and all the cities again. ya redundant but thats how it works.
make sure you have the card you want to use on your apple site account already and memorize your security code for that card this will save you a lot of time placing the online in store pick up. also if you can use the app its also quicker. speed is the key. because they do go fast its kind of like an online auction. lol
I learned something each time and i finally got it right when i did get the one i drove 8 hours round trip for. so seen i have one I can aford to wait for one 2 hours or less out. I also had an available line for upgrade. but this time i will purchase out right and when i have the phone in my hands i will cancel my att backorder. and then have them rering it to my then will be available upgradable line. Hope this helps.