Not all BB apps use the encrypted proxy transport all the time. Fortunately most make you agree to use direct access before the get on the network. Not withstanding, even if your communications are encrypted, what does the BB expose to someone prodding it? I haven't had time to analise the BB's network profile. But as a security guy, I am always paranoid to connect ANY device to ANY unknown network environment. I like to know when and where I am connect so I can at least be alert for unusual activity.