I have an unlocked Blackberry 9700 and initially bought a PAYG 2G sim from '3' when arriving in HK. Now I wish to use some data and thought it would be best to sign up to a sim only contract. However when visiting a 3 Shop they showed me their Blackberry Monthly Plans which are extortionately expensive in comparison to other sim-only plans (e.g. £398 for unlimited email data plan). The guy said it was because Blackberrys used different data formats or something and that why it's expensive.
Am I being thrown a curve ball here?