The major complaint about today's E Ink devices, such as the Kindle or Sony Reader, is that they have low contrast, low refresh rates and are completely rigid. Well, thanks to the unceasing march of progress, things are looking up.
A new prototype E Ink display offers an improved 12:1 contrast ratio (compared with the 7:1 ratio of current screens), a refresh rate quick enough to display basic animations and rugged enough to be punched without breaking or distorting the image. This isn't ready for prime time yet, however, so we probably won't be seeing sexy displays like this in devices until next year. But soon!