Can anyone tell me if I can use a normal mobile line with data plan on a BlackBerry?
Or must I subscribe to a BlackBerry plan in order to use a BlackBerry phone?
yes you can use your phone to call and sms along with your web surfing on your browser. But you cant use stuff like bbm, the bb app version of facebook or twitter or msn, push email. But you can use the mobile version of fb, twit or msn, just less functions like you cant tag ppl in photos on fb.