How to get people who installed a leaked build to stop using that build?
Include a remotely-activated kill switch; and kill with plenty of warning.<p>What do I mean? I no longer use iPhone because I installed a beta iOS. When the official build came out, I kept "checking for updates" but I never got an update. One day, Apple remotely killed my phone.<p>Manually updating to the production iOS would be fine; but remotely disabling my phone without warning was not acceptable. This is why I refuse to buy an iPhone.