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I heard about it only being available on JB but when Skype came out for the iPhone those who had a JBed iPhone had problems with Skype then shortly thereafter, there was quite a bit of chatter not to worry cuz in 3.0 you would be allowed to access VOIP via 3G.

Is the Skype issue fixed on JB iPhones? Does Fringe or Nimbuzz VOIP work on JB iPhones?
 
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