Im not a big fan of phones with exposed keys on them... too easy for them to be pressed by accident unless you get a belt clip for it. ofcourse I dont use one for anything but making calls since I dont need any of the other functions. ofcourse if i was running a bussiness a PDA phone would be a must have but I would most likely have a netbook to easily jot down notes or check info.
Give a man a fish and he will eat for a day. Teach him how to fish, and he will sit in a boat and drink beer all day. -George Carlin