Tablet Technology in Correctional Education

Hello All,  The Correctional Education Association (CEA) is working alongside Union Supply Group to roll out its secure tablet for use in correctional education classrooms.  I'm part of the team identifying relevant educational content for use in the facilities and thought I'd ask for imput on what you, as educators and administrators in this setting, would deem most necessary and important for such a device.  The tablet is fairly small, only 32GB, which means that we have to pick and choose which resources make it on and will be offering a menu of possible materials grouped by subject.  We are definitely adding GED/high school equivalency materials, along with A.B.E. and ESL.  Would anyone be interested in sharing a particular resource favorite, or a bucket list/wish list for a secure tablet in the classroom?  I think this tablet will really open the door to additional kinds of tech in the prison classroom.  So any suggestions/and or comments on the project are welcomed!   -- Heather