Those PDA phones you listed all do have their pros and cons. But if I had a choice between those three, I would go with the BB Pearl. BB's OS is rock solid, and that's why I'd pick it over the other 2. Either color you can't go wrong; black looks very professional, and the white just looks damn sexy. However, if you like to connect online via Wi-Fi, then either the MDA or Dash would suit your needs. I would've got a BB myself, but didn't because I didn't feel the need to get a BB data plan. Without a BB data plan, the phone becomes pretty much half used. And that, to me, is a waste of money.
