Amazon is not interested in innovating in e-ink and they are sitting on the US market like a big fat man. So that explains the lack of innovation there. But kobo has shown there is a market for bigger e-readers. I guess the profit is not big enough for Amazon. It's easier to put a new shape case on and buttons and charge big bucks. Shame that. Guess they learned from Apple.
From China we are seeing innovation. Onyx is consistently bringing out new format sizes
And now other companies are getting into the action. There are a number of other companies now looking at producing and selling big e-readers. So there is hope there will be more products and prices will drop. But of course larger e-ink displays are a niche product. But one can buy e-ink Android tablets so that is good news.
But yes, it is sad there is less development of e-ink, but it is the market.