Or maybe they were being nice enough to give folks some warning to revert back to the original firmware and to prevent others from modifying it? Should Apple really screw over all the good customers who didn't void their warranties, who didn't blatantly ignore the absolutely clear advertisements the iPhone is for use on the AT&T network only, by pushing back the release of new features in order to make them place nicely with a hack? Give me a break. An evil company would have done it without warning.