Curious why you felt the need to point out "Windows" in relation to his comments about peripherals...OS X has the exact same support in this regard.
It's also curious that people are discrediting the iPad Pro's ability to hang with devices like the Surface Pro before the thing has even hit the shelves. There was a comment made about how you can't run full feature software on the iPad...but the apps in development, in terms of graphics development, are on par with any "full feature" software of the same type...Affinity Suite, if paired with a precision tablet function, would be an incredible tool in this field.
You can run all the "full feature" software you want to, but if it doesn't do any particular function well, what's the point? The Surface Pro can run the PC version of photoshop, but it doesn't do it all that well, and the pen interface and performance is not optimal at all...so if the iPad Pro can (and that is still a big IF since we don't know) do graphic design with superior precision on a mobile app, how is that a "fault" compared to a device who runs a full feature software but doesn't do it all that well for the same purpose?