Thought I'd post as my pre-order-from-hell situation is finally over. I don't have a tablet, but I do have my $308 back. A week after signing a form that allowed them to remotely brick a lost/stolen device, they were supposed to mail me a new one, but instead they just refunded my money and told me to put in another order. The refund was pending for a couple days on my CC, but now the refund is complete.
As for putting in a new order... I think I'll just pick one up at a B&M store
I happened upon an Office Max and a couple Staples stores while out for work, and none of them had a 16GB. I figure in a few weeks I'll just be able to get one easily.