Can I change my sim card from my sidekick 08 to a blackberry bold 9700 without problems?

I have a sidekick unlimited data plan, so im not sure whether it would still work with the blackberry bold 9700.
Can it? Without any problems?

Source:

http://answers.yahoo.com/question/index?qid=20100115201635AAWEwLH

>Open Question: Can I change my sim card from my sidekick 08 to a blackberry bold 9700 without problems?

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