I'd be curious as to the cost of living in those places. Switzerland's cost of living is pretty high.
And with kids....... I can't really imagine him wanting to raise his kids in these countries. Don't get me wrong, it could be a rather cool adventure, but I don't see him doing that to his family. Sure, there are ways around it (letting someone else have legal responsibility to the children so they can stay in the US). But the intracacies of the matters and issues related to this get very complicated, there are a lot of gray areas in this, and given the publicity he brough himself by opening his mouth, he would be more heavily scrutinized to make sure he is following everything to a "t". And like I said, I'm sure the IRS will find a way to substantially tax his earnings in the US. His best move, I suppose, would simply move to another state, which some of you suggest he do. I wouldn't want to live in any of those lower-tax-rate states over SoCal, but I suppose the cost of saving money is living in a place that he perhaps finds less desirable. People make the decision to live someone less desirable in the same of saving money everyday.