Originally Posted by Pizzle
You're wrong. No Blackberry Data Plan = No service books = No access to features.
Won't work with MMode. Won't work with Cingular's MediaNet. And so on.
Have to have a Blackberry Plan, but I think the T-Mobile plan/service will end up saving you money. I switched over from ATT and I am saving quite a lot for more minutes plus the BB plan.