Yes, and no. There won't be an additional button for screen-reading since there are tons of third-party apps that do that already. But, I can tell you that where text is displayed on screen, it is raw, readable text, not an image with text in it. This way, all the screen reader apps that are out there can do the standard top-to-bottom reading of the menus and active buttons. :)

As for the receipts, that is already built-in, see my "eReceipts" comments above.. :)