In a typical move for Apple, the online Apple Store has been taken down shortly before the company’s Let Loose event. It’s probably to prepare for new iPad models.
The online version of the Apple Store usually goes offline ahead of Apple’s special events. This can be used to produce hype for the event, as well as to prepare Apple’s website for the preorders of new products.
Usually, the store becomes available to access shortly after events conclude, complete with the just-announced products.