Paul Thurrott (a long term trust able source on what goes on inside Microsoft) posted an update yesterday noting that the 1TB SurfaceBook has for a long time been unavailable and is now gone from the Microsoft Store. He observes that this is a typical Microsoft move before a major upgrade, and is quoting the existing rumors that a new line will be introduced in October. As the second generation was mainly an CPU / RAM / HD upgrade, can Microsoft again surprise us with their continued overtures in the HW space?