The E Ink Carta is the electronic paper display used in the Amazon Kindle Voyage and latest generation Kindle Paperwhite ebook readers. It has 300ppi resolution, a very good contrast ratio and excellent readability even in direct sunlight.
The current Kindle lineup includes only readers with 6" displays, which many people find too small for comfortable reading. While larger ebook readers exist on the market (such as Amazon's own Kindle DX), none of them seem to have a display as good as the E Ink Carta in terms of resolution and contrast.
Interestingly, the Carta product data sheet states that sizes up to 13.3" are available from E Ink to manufacturers. Which end-user products contain those larger Carta displays? In particular, are there any ebook readers (current or planned) with a Carta display larger than 6"?