Originally Posted by
Sinecure
Someone above mentioned BIS and BES. BIS = Blackberry Internet Server, BES = Blackberry Enterprise Server. If your firm has a BES and Exchange (or Lotus Notes), you'll get pretty good syncing. If you run off the BIS (this is the same service as BES, but run by the carrier and RIM), you'll still get live push email, but syncing will work a little differently.
There are an increasing number of really nice Windows Mobile devices out there. I haven't looked at all the ones available from VZW, but they keep getting better and there's increasing amounts of software for them (as opposed to Palm, which has lots of good software out there now, but will probably start seeing the variety of available SW start to decline, along with the OS' market share). If you do buy a Windows Mobile device, I'd recommend getting an extra battery. Exchange/Outlook sync on a WM device is very good, and they continue to work on the back-end infrastructure that currently eats battery life and makes for larger data usage than on BB's.
Call me if you still have questions.