Microsoft Surface Book Out Of Stock For Pre-Orders

Microsoft said earlier this week that pre-order interest in the new Surface Book was higher than expected. That seems to be borne out by news all versions of the laptop are out of stock on the pre-order website.
Obviously, without knowing how many Surface Books were available it's going to be hard to say whether this is a sign of popularity or just limited launch availability.
Certainly there's not been a comparable level of buzz about a new Microsoft product in a very long time.