Looks like Apple decided to refund all rush shipping charges for iPad pre-orders after complaints that people were paying for nothing bubbled up. It makes sense, since all orders, rushed or not, are due to arrive on Saturday.
To Our Valued Apple Customer:
Thank you for your recent Apple iPad purchase.
Our records indicate that when you placed your iPad pre-order, you
chose to pay for expedited shipping.
Expedited shipping is not necessary to ensure delivery. Apple has
processed a refund for the shipping charge on your order. Please
contact your card-issuing bank for information on when the credit
will be posted to your account.
Your iPad will deliver on April 3rd in the areas where UPS offers
You can view the most up-to-date status of your order at
The Apple Store Team