iPad Implementation Resources Needed

Hello,
If you are reading this, thank you for answering my tweet (I am new with some of this PLN stuff).  160 characters just wasn't enough.
I am looking for resources related to the implementation of iPads into the curriculum and classrooms of middle schools.  If you only have K-12 resources, I will take those as well.  My goal is to develop a presentation regarding the cost-benefit analysis of iPads as interactive learning tools for middle schools students.  This presentation would be made to my Principal, District Office Administration, and possibly our Board.
Foreseeable questions I would need help with:
1.  Why are iPads the platform I chose?
2.  What data supports your project goals?
3.  Timeframe for implementation?
4.  Teacher training/PD questions....

Thanks again!
Gary