Would be interesting. I thought when the touch bar came out that it would go well with something like the Optimus Maximus keyboard (colour display in every key)

Would be interesting. I thought when the touch bar came out that it would go well with something like the Optimus Maximus keyboard (colour display in every key): http://www.artlebedev.com/optimus/maximus/ http://www.artlebedev.com/optimus/maximus/ That was fiendishly expensive though, so e-ink could be a good way to lower the price.