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.

[1] http://www.tactustechnology.com/technology.html