The "board" part of Weiser's original "pads, tabs, and boards" vision [0] always made logical sense, but for some reason never realized itself. I'm a bigger fan of the tabletop form factor myself (see for example the original "surface"). It'll be interesting to see how this grows.
> to boot, it's a piece of hardware that it got right even in version one
Except it's not version one; see the surface and surface 2 before the current surface :)