Intel also appears to be prepping a Skylake Xeon processor for laptops.
Other than the obvious ECC, I'm not sure what the advantages are, but it's interesting.
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I think that Microsoft's best bet in the phone market is with the so-called 'Surface' phone - Intel W10 Mobile based - that can act as a true W10 computer once a monitor, keyboard and mouse are attached. Not just running universal apps (as Joe B demoed) but running all desktop apps because it's Intel based. That is a clear differentiator from the competition.
Neowin article: DON'T PANIC!
The part I found interesting was that they are apparently servicing 16 downloads per second... which @5.6GB? I guess requires a total bandwidth of about 900gbps ?! (presumably distributed across their various data-centres around the world)
The ISO download page has already been posted