< sigh >
If only the MR community put as much reseources, time, and energy into starting to build a distributed computing project to crack apples signing keys (even it was only one device at a time) (and even IF it takes many years), there would be so much bandwidth saved and so fewer hearts broken around here.
Why should people waste their time trying to crack apples signing keys when downgrading should always be an option, with given warnings from Apple.