I had my old iPhone 3gs sitting around and I swapped it for a new blackberry bold and some cash. Now that everyone has BBM these days I wanna jump back and fourth between my iPhone 4 and Blackberry Bold whenever I feel like using BBM. After doing some research I found out that the iPhone's micro sim-card does not fit in any Blackberries so I ordered a sim-card adapter to resolve this issue. As I am waiting around for my sim-card adapter to come in the mail, I am now wondering if I have to change my plan to use BBM? I live in Canada and I am with Rogers. I have an iPhone plan I think which includes data. Even though i'm on a iPhone plan, can I use the current plan i'm on and still use BBM without changing my plan? If not, are there anyways to do get around it, maybe like a jailbreak for blackberry or something? Bottom line is, I just want to use my blackberry for BBM. If anyone is currently swapping between there iPhone and Blackerry, whats the best way to do it without changing plans? or will BBM work with the data plan I am already on? Thanks!