I'm posting this mostly to reassure myself but maybe it'll help other people too. 😱
After almost every major Apple product launch, people check their order status like crazy. Then when one person's product finally changes (Processing Item -> Preparing for Shipment, Preparing for Shipment -> Shipped, etc), people get very antsy when their's doesn't change. The thing we have to realize is that: Apple knows what they're doing. They, presumably, have stock all over the world at different locations- some closer and further than others to where you live. Yes, sometimes orders get mixed up- that's inevitable- but it's extremely rare and you should be confident you will get your iPad (or whatever you're waiting for) when Apple says you will. Also, just because people are seeing their things ship already, that doesn't necessarily mean that they will get it earlier than you or before launch. Apple did deliver most early pre-orders for the iPhone 4 a couple years back but it was only 1 day early and nearly everyone on here (since we all pre-order...) got ours. So, if they do decide to deliver some early, if you pre-ordered around the time as everyoe else, you should be good. But just be patient. Even if you're status hasn't changed on Thursday, Apple will do to everything in their power to have it shipped overnight so you get your iPad when they promised.
That's all.
Phew, that made me feel better. 😛
*refreshes order page on apple.com*