Questionable where this needs to be, so I just stuck in the off-topic section
When I worked at a hospital over the summer, we were looking for a similar device. We ended up going with the XV6700...
http://www.mobiletechreview.com/Verizon-XV6700.htm
It's offered by a few other places, not just Verizon.
I think regardless, whatever you go with should be a full fledged pocketPC, and not just a plain cell phone or "SmartPhone"