I don't see where the original question was clearly answered. I for one can explain why I could use a Blackberry without a data, or even a phone plan. I'm thinking of purchasing a Golf GPS( average cost $250 - $300). If I can buy a used Blackberry with built in GPS, and then download Golflogix, I could use it as a golf GPS with only an annual fee from Golflogix of $39.00. I already have a company supplied Blackberry, but it's an old 8703e, and it doesn't look like they're willing to give me an upgrade at this time.
Has anyone out there tried this ??