Cell Phones in high school classrooms

Like many of you, I am an educator and am struggling with the implementation of cell phones into the classroom. I would very much like to use cell phones in the classroom. For polling, for internet access and for research. Like any other piece of technology, it needs to be a tool of learning and not a toy. The primary argument that I have been presented with is that it will lead to texting and cheating. I whole heartedly disagree and have fought for cell phones to be allowed in the classroom. 

My rules would be:

No phone calls...
No texting....

and any violators would lose the privilege to  use the tools in the classroom, following the AUP policy...

what else would you advise I add?

thanks

Hugh Potter