Be patient...it took hours last year before I got mine when I ordered after the keynote. I ordered at around 10pm at night and I got the confirmation email at like 4am. I wouldn't freak out unless you don't get it by the time you go to bed tonight.
I didn't get an e-mail yet as well. I was up at 1AM and I finally got it to work at 7AM. Order went through at 7:03AM. I have my order number and I was charged. I know I'm fine, but still
I ordered around 10am this morning. East coast. My order is good to go on apple.com, and I printed my confirmation page, but I too have not received the confirmation e-mail yet. I'm not really worried about it, they already charged my account and I have the order number and everything.
Still I'm sure once I do get that e-mail it will clear up the tiny bit of remaining doubt haha. It was such a brutal process to pre-order I feel like anything could still happen even though I am "in the clear".
Look what technology has turned us in to. Makes me sick!