I hoped that they come up with high resolution, flexible, multi color, large size, touch sensitive, affordable panel(1), but they are into wallpaper business instead.
3M has a number of products for adding touch to surfaces. It can be expensive, though. I would link you to one of them, but their website sucks and I can't actually obtain a good link, other than a top-level for touch products: http://solutions.3m.com/wps/portal/3M/en_US/Electronics_NA/E...
But I agree with you, I've been disappointed with where this technology has been going, or rather, NOT been going. I'd love to build a small laptop with a completely eInk display.
There was also a 13 inch USB (plenty of bandwidth for low refresh of e-ink) monitor at CES.
There is a ton of pent up demand for larger screen e-ink readers as Sony found out when people outside their target market wanted to buy the 13 inch DPTS1.
Ok. Fine. But I am still a bit disappointed.
(1) They actually have high resolution 9.7" panel http://www.eink.com/display_products_pearl.html but no color and no touch (this is probably a major show stopper);
They have color panels http://www.eink.com/display_products_triton.html but no high resolution and large size and no touch;
They have flexible panel http://www.eink.com/display_products_mobius.html/display_pro... but no color, no high resolution and they are either ultra small or too large and no high resolution or touch;
So we are almost there but still not there.