this is bad news. it's a sign in the shift of apple as we know it.
things are transitioning away from mac desktops, osx and steve jobs.
steve jobs will be leaving soon (health), osx will begin to merge closer to ios, portables such as the air and ipad will dominate the market.
the previous higher-ups do not want to be a part of this transition and have opted to move on.
i feel after steve leaves....apple will begin to go down hill over the course of 7 years.