You've messed up the link (remove the "Challenge" part from it), but that is a pretty uninformed piece of writing. The new Core M he's talking about is not expected to be as fast as current i3/i5/i7 processors, and from what I've researched, the device won't have more than 4GB of RAM. It also has no USB port, no DisplayPort, and no microSD slot - its only port is microUSB. There's also no pen input, no kickstand, and we don't know the pricing yet.
Now, granted, the design is truly fanless and it's ridiculously thin as a result, not to mention that the keyboard has a real hinge. The LTE support should also be nice. But, by the sounds of things, this won't stack up to the Surface Pro 3 as a workhorse.
Edit: Woops, didn't notice that there's another thread for this.