Going from memory of dozens of Apple product launches, this one seems quite different from others.
I doubt any of this really means anything outside of Apple making minor logistical changes. Or it could be that the new tech involved in producing the new iPads requires the changes. Regardless though, usually "Preparing to Ship" means you'd get the product in a day or two. I don't think that's happening here.
- Exact order time was never published by Apple. We all just assumed 5 AM PDT.
- Apple Store didn't shut down a few hours before order time.
- Expected ship dates for early orders have yet to update to a firm date. We still have ~5-7 day ranges.
- Orders have been moved to "Preparing to Ship" ten days before release date with credit cards being charged.
I doubt any of this really means anything outside of Apple making minor logistical changes. Or it could be that the new tech involved in producing the new iPads requires the changes. Regardless though, usually "Preparing to Ship" means you'd get the product in a day or two. I don't think that's happening here.