Case Studies with Tablets/E-readers or Math Software Use

Hello- I have a projet for my graduate class where we report on a case study.  My group and I were wondering if anyone on Classroom 2.0 has conducted or been involved with a case study regarding the use of E-Readers/Tablet PCs or a math software program.  If you have and would be willing to correspond with us in an interview we'd greatly appreciate it.  Thank you!