I hear they have nifty schools. If this guy is persuasive enough maybe he can get a higher up judge to review the divorce and wrap it all up. The time to relocate is before the kids are in high school. And I figure you're a pretty persuasive guy in your own right when it comes to the incentives it would take to move.
If not, wouldn't it be a really cool thing if both parents are too busy with their careers for the kids! (Cheap shot.. I know)