[rbanffy]

AFAIK if you renounce American citizenship and never spend more than 6 months at a single place within the same year, the question becomes moot.

[jstx1]

What citizenship are you going to travel around with in that case?

[rbanffy]

You'll need another one. If you only have that one, you'll have to pay some taxes in the US, regardless of where you live.