There was a period of time while Steve Jobs was still alive and part of the company but had bigger things on his mind prior to his remission. We saw this with

There was a period of time while Steve Jobs was still alive and part of the company but had bigger things on his mind prior to his remission. We saw this with the release of the aluminum unibody MacBook. There was no product differentiation other than the FireWire port. There were probably a few products that were far enough down the pipeline that couldn't be killed when Jobs was back for a brief period of time.