If the Microsoft Surface is on your holiday wish list, you might want to place your order now.
According to the Microsoft online store, the RT tablet's £399 32GB model (without the Touch Cover) sold out in a day. It is now scheduled to ship "within three weeks."
Pre-orders for the two remaining devices - the £479 32GB and £559 64GB, both with the black Touch Cover - are still expected to deliver by 26 October.
Microsoft did not immediately respond to a request for comment about the shipping delays, and provided no further details on its website.
Microsoft started accepting pre-orders for the RT version of the Surface tablet this week. Touch covers are available separately for £99.99 each in black, white, magenta, cyan, and red.
The pressure is on for the company, which will release its Windows 8 operating system on 26 October. Several days later, it is hosting a Windows Phone 8 launch event in San Francisco. ITProPortal will be covering both events, so stay tuned for all the details.
Limited pre-order supplies are common amongst highly anticipated products. Last month, the iPhone 5 sold out of its initial inventory in just one hour, topping two million orders within a day and pushing delivery dates to two weeks. Many iPhone 5's ended up arriving earlier than expected, though.
Meanwhile, the 16GB version of Google's Android-based Nexus 7 tablet was out of stock less than a month after its release, leaving only the smaller 8GB available for purchase through the Google Play store. About a week later, the Asus-manufactured tablet was back on shelves.