Benchmark scores for the Core m3 are all over the map as a result. It is slightly faster than the old Core i3 model, but only some of the time. I think I would spend the extra $100 on the i5.
As for the Surface Book, that accordion hinge on the back is really ugly. Aside from that, I'll have to reserve my opinions until reviews come out. No idea what the details are of its specs.
I agree on spending the extra $100. IS that the bench for the Skylake m3? I've not seen them, so was curious as to whether you were speaking to Broadwell or Skylake with that.
And the hinge is strange, but I don't mind it. I mind the color much more. I'm sick of light-metal devices. I miss the SP2's dark chassis and the 16 GB Zune HD's. Things like the Nexus 6P and the Macbook Air and the SP3/4 and the Surface Book and the new ASUS laptop, I find them hideous.
I get the Surface Pro represents a better solution than the iPad Pro, but at the same time the iPad is selling for $749 only. I kinda wish Microsoft went down to $799 or something. $899 is a bit steep, although better than the SP3 original prices.
Personally I can't see myself spending this much. I want them to release the vanilla Surface 4 now!
And I don't really get all these comparisons with a Macbook Air/Pro. Those are full blown laptops, and if I wanted a laptop I'd probably still go with an MBA/MBP over a Surface Pro 4. The Surface Book also gets expensive once you start adding the features to make it perform well.
The iPad Pro starts at $799. Then you have to spend $170 on the keyboard and $100 on the Pencil. So, for the full experience (which is still iOS-based, meaning no x86 stuff), you're ACTUALLY starting at $1,070 for 32 GB of storage. The Surface Pro 4's base model (m3, 128 GB) is $900, and with the Type Cover, you're at $1,030. That's to get times the iPad's storage (admittedly, much eaten by the OS and bigger applications), USB support, microSD support, an iris scanner, and a more-powerful pen (eraser, changeable tips, etc.). Even the i5 model and a keyboard would only be $60 more than the iPad Pro.
I'm the same though, I couldn't bring myself to drop $1,000+ on such a thing. I use a desktop exclusively now, and I don't really have gaps in computing availability. $1,000+ for a secondary (arguably tertiary, with my phone secondary) device I'd barely use is just bad money management.
You can say you'd take a Macbook Air, but you're also not everyone, of course. It's smaller, not exactly cheaper, and you don't get the pen support. I agree that the laptop functionality is occasionally overblown with the SP4, but I'd still take it over a MBA all day (but I hate Apple).
I was really hoping the Pro 4 would get MUCH thinner, not just a little thinner.
As Panos Panay said during the event, they couldn't do it without taking the USB 3.0 port from the thing. The Surface Book's USB ports are in its dock, so that tablet doesn't have the ports, and it's down to 7.7 mm. So, they could probably have gotten it to 8.0 mm or less (not sure on exactly 7.7 with the smaller chassis with the SP4), but they're already at the line between form and function.
Is the keyboard the same on the lower end variants, just without the Nvidia GPU?
I'd definitely say it is. Why bother making a second keyboard? It'd throw off the weight balancing. If they're not going to give you the discrete GPU, it'd be nice if they added a battery to balance the weight.