We've been running a pilot program with Blackberry units, and am
constructing a survey to administer to our users to see if:

1) They were more productive in their jobs with the unit
2) We (internal IT) supported the units/server well
3) The security policies we implemented make sense
4) The various carriers used had good coverage

Anyone else done this? Maybe have some pointers on specific questions
and areas I'm missing?

Thanks