File this under a good problem to have but it looks like Microsoft has temporarily stopped pre-orders for all Surface Book models. Over the last few days, the Core i7 variants began to shift from pre-order to 'Email me when available' and now it is all variants of the new two-in-one device.
It is telling that the most expensive version ? the top of the line Core i7 with 512 GB of storage and 16 GB of RAM ? was the very first to go unavailable starting a few days ago.
Full story from the WindowsCentral blog...