I have seen some post's about PDA's. I have seen that it is another forum topic under "General." My clinical book that I am reading, (check out my other post) has an instructor recommending a PDA. Are they really needed? Do you have one and if you do, do you use it? Just curious if they are all that helpful and then maybe I'll get rid of my voyager for a PDA- I'm a verizon customer, does it have to be Blackberry or just any other "smartphone?"