there is the tale of a french game developer who did what you said, and the IRS still managed to froze his foreign bank account.

basically, he gave up his US residency. Moved back to his native france, joined a game company that turned huge. on the IPO(?) the IRS got france to hold his assets because he was evading taxes, by renouncing the residency.

..i'm trying to find the history or the names. but failing, i'm sure someone here can help...