I seem to use one iPhone exclusively for mad hacking, jailbreaking and frigging about with, another as a pedometer, another for music, another as a – guess what ? – phone. I know I’m putting my botty on the line by confessing to jailbreakage and hackery, but I think Apple (while each update brings a new weapon in their war against Pwnage and SIM-card skulduggery) are man enough to take it.