Different SIM for Blackberry?

Not that I know of, sometimes I switch my SIM card over to my rzr if im going to the beach and dont want to bring the BB so id say no
 
Sim cards are the same except for like on att having a 2G compared to a 3G, but that really doesnt matter unless you have a 3G sim card
 
Att and tmo have the same size Sim card. Which is why you hear of tmo customers using iphones. But there is a 2g and 3g difference.
~via BB (wap.rabroad.com)~
 
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