http://www.e-ink-info.com/tags/e-paper-technologies/liquavista
Looks like amazon is getting ready to make some electrowetting display e-readers. If you aren't aware, electrowetting technology has similar characteristics to e-ink; low power, can be used without a backlight - however electrowetting has a refresh rate comparable to lcd and good colour replication.
I'm not that excited about an e-reader (will probably buy one though), but this is a step closer to getting electrowetting smartphones and pc monitors that do not require backlights.