If you are one of those who is stuck trying to pre-order an iPhone4 using the online AT&T / Apple Store, then perhaps there is only one solution for you. Reserve one for a instore pickup on 24th June. As John Gruber of Daring Fireball enlightens us, using the App Store iPhone app you can reserve an iPhone 4 for youself in just 30 secs. Simple!
(As for me, I gave up on pre-ordering for home delivery. I used the new Apple Store iPhone app to reserve one for in-store pickup on June 24; whole thing took 30 seconds, because it doesn’t go through AT&T.) – DaringFireball