This report will update the findings from the previous publication and discuss the findings from recent studies, as well as the limitations of the research to date. It will also discuss what, if anything, distinguishes Tablets from other technologies that have previously been introduced in schools, such as computers, laptops and netbooks.
http://www.tabletsforschools.org.uk/wp-content/uploads/2014/04/T4S-Literature-Review-9-4-14.pdf