When do onyx a ebook reader?, or a tablet, according of what if will be viewed, in 13,3 inches and in color. Is the best of my dreams, and i waiting for someday that will me convert in truth.
Not soon for sure- companies making ereaders have to make sure that enough people would be interested. Given, even 6 inch version would be expensive. You could look into how much time passed between releases of Onyx ereaders from the Wiki (I like mobileread Wiki)