Can I switch from blackberry to android or IPhone without changing my plan? Right now I am on a blackberry plan. I thought that I could just buy a new android or IPhone and switch the sim card but was told at the store that if I switch my sim card it will eat up my data. Is this true? I don't want to give up the plan that I have but was told that I will have to sign up for a new plan which is more than what I am paying now. I like the plan I have. I got it at a special price and it has everything I need. The new plans don't offer the same features at the same low price. What is my best option?