Ian, if its works emails, then blackberry is the way, they are great.
Jobs we get passed, i copy the details into my calendar in outlook on the laptop and they are automatically synced to my BB
Im just waiting for the BES server upgrade as when you have 2 BB's on the server and you want to erase the details of one of them, it automatically does the bottom one.
I found out the hard way and had to leave it for another hour to load the service books back on to one id deleted!!

Personal use, get an iphone, business use, BB all the way