Tangentially, see Dell is also building its own Microsoft Surface clone (The Verge)
"While the invitations don't detail which new products Microsoft will unveil at the launch, tipsters have said Surface Pro 4, Band 2 and the new "Cityman" and "Talkman" premium Lumia phones (expected to be christened Lumia 950 and 950 XL) will be the stars of the Microsoft hardware show.
I doubt any of the new Microsoft hardware will be available on October 6. I've heard from some contacts that the Surface Pro 4 tablets are likely to ship some time in November, still in time for the holiday season. I'd expect the Lumia phones and Bands also to be out in time for holiday."Microsoft sends out invitations for October 6 Windows 10 hardware blow-out | ZDNet