See
E-book Reader Matrix: Larger Devices for every large screen EInk device we know about. There may be several more announced at CES in January. The Plastic Logic Que might meet your needs, but it is hard to tell with an un-released device. The Astak Mentor Electra might do so as well, this is a standard Netronix design that will be sold with other names and sometimes with other software (e.g. the PocketBook 902). There is no firm release date, or firm specs, for the Electra yet.