I fail to see the "innovation" in this. Purpose built keyboards have been around for as long as i can remember, I am especially thinking about the TV production computers with special keys, colours etc...
When i saw this i had my hopes high to see a touch surface with an electronically customisable layout, so that the app can essentially draw its own controls.
Yes, that would be nice. Those dual screen laptops are a nice idea, but not with double screens; no battery life/too heavy and such. With e-ink and especially mixed with something like Tactus[1] you could have a winner.
I would've actually expected something like that to appear in one of the big vendors' machines as an attempt to be the 'new iPhone/iPad wow moment'. Fail or not, someone has to try.
With e-Ink this is not difficult to do.