Cnet reports that Michel Mayer will become CEO of Freescale (Motorola's new name for its chip division). Mayer was the general manager of IBM Microelectronics (IBM's chip division).
Not likely. That's like saying Gates can give Apple the source code for Windows. GM's are pretty high level. They don't really do the grunt work and don't typically get their hands dirty with the details. He might have some fairly privileged information but probably no more so then what Moto already knows about.
Anyways its a moot point. I'll bet IBM has a fleet of lawyers locked in a closet at IBM. All they have to do is open the door and say LAWSUIT for them to go after Moto if they try anything. And trust me. I know from experience that companies won't hesitate for even a nanosecond to pull the trigger if they think a former employee is giving away trade secrets.