Finally Shipped!
Studio Max (U.S. Delivery)
Max Options: 32 graphics cores, 64GB memory, 2TB storage
April 1: arrives June 27 - July 11
May 3: arrives June 22 - 29
May 10: credit card payment to Apple "pending"
May 14 sometime before 6PM in Shenzhen: "Preparing to Ship"
May 16 about 3PM in Shenzhen: “Shipped”
Apple has given me a tracking number and a delivery date of May 27. This is just a holding date until UPS gives me a real date. The UPS page for my tracking number says "The delivery date will be provided as soon as possible".
My credit card payment to Apple is still "pending", but will probably be "posted" soon. See
Apple's Page on Payment & Pricing:
When Apple charges your account
Apple receives authorization to charge your account prior to shipping your item(s). However, your card will only be charged after your order has shipped. If your order contains multiple items and they ship at different times, you may see multiple charges on your credit card statement.