And I would like to know how relevant this is to using an NLE?
Playing a file in a viewer (scratchplay?) is NOT a comparison to an editor running FCP7 for editing on Mac Laptop. Very narrow defined app run for a special purpose - daily rushes I presume.
Brings me back to the days of demonstrating an early form of viewers playing quarter-size videos on Microsoft 95. Yes, honestly we (working with Microsoft in Seattle) brought in thousands of awestruck viewers to the convention hall for the OS intro with that.
>> And I would like to know how relevant this is to using an NLE?
Quite. I use Vegas Pro, Photoshop CC, Lightroom and Premiere on the current Surface Pro which is quite a lot less powerful. My current Surface Pro has 4G of memory and a 128 SSD and an i5 CPU (not Haswell). It is fast, and has no problems with moderately sized projects. The new one doubles the RAM, speeds up the CPU etc. It'll do quite well as a mobile editing platform.
Also, now that the drivers are in place, it is simultaneously a Wacom. It is quite a joy working in Photoshop CC with this thing when you can work directly on your photos with a pressure-sensitive pen. When I plug it in to my big monitor, it is even better.
On vacation in Greece earlier this year, I simply asked the resort manager if he had, or knew of a big monitor I could borrow or rent, he was nice and accommodating meaning I had a big monitor in my room where I could work on my images during my stay.
Going by the computer specs of people in this group, lots of video editors are more than happy enough to work on editing workstations that are significantly less powerful than both the Surface Pro, not to speak of the Surface Pro 2. With a docking station, a USB3 hub and a big monitor, the Surface Pro 2 would be a significant upgrade of their primary workstation.
I just ran across some links to Surface "Blades". There are special purpose snap-ins that would attach to the Surface instead of a keyboard. I think the only actual working one is an audio mixing panel for live events. But it's an interesting idea.