Classroom or Schoolwide Mobile Learning

Many educators and academics are saying it is not a question of if, it is a question of when schools drop the traditional textbooks and go paperless using mobile devices. There are many discussions within Classroom 2.0 surrounding specific devices but I am looking for a common ground - examples on how teachers and schools are blending technologies to create a constructivist mobile environment. Is your class/school doing this?  Can you share how this is working? The best way to demonstrate this may actually be to post videos showing a project your class has done using hybrid or blended technologies.