A gridset making use of the Kindle Reader PC app with accessibility plug-in. As long as you have screen reading software installed, this will function as a self-voicing switch accessible ebook reader. (This gridset automatically launches Texthelp Read and Write Gold, but could easily be modified to launch the free NVDA screen reader). Optimised for switch users.
For more info, read the case study on the DART project website: http://dart.beaumontcollege.ac.uk/?p=95