I tried ordering from both AT&T and Apple online for about 7 hours today. I even tried Apple's new App Store app. I obviously wasn't trying consistently but that was a lot of wasted time
I walked over to my local AT&T store in mid-town NYC. The line wasn't too bad -- only 12 people long. AT&T screwed up my order though -- they processed my credit cards four times and I had to spend twice as long there as anyone else!!!! I'm fully expecting to see four $300+ charges on my credit cards that I'm going to have to dispute three of. What's up with the AT&T internet and systems? I find their wireless network OK -- you would think that their systems would be up to par though -- otherwise why do this pre-ordering!!!
Only good thing is that I pick up my 32GB iPhone 4 from AT&T on 7/24

It'll be nice to "pass down" the iPhone 3G to another member of my family...