Right, so your data point is not really relevant to the conversation. The implication was that anyone interested in bitcoin would probably have a jailbroken phone, and since none of your friends are interested in bitcoin, whether or not they have a jailbroken iphone is not particularly relevant. The original context was:

For those interested in Bitcoin right now (mostly geeks) I'd say the percentage of jailbroken iDevices is much higher, i'd throw 80% out as a guess.

I think we can all agree that this is reasonable.