Since we are on the subject, let's open it up to offshore banking havens in general.
Used to be that the Cayman Islands, Lichtenstein (sp?), and a few others were considered great for rates, secrecy, but mostly tax free interest compounding (and tax evasion, or tax avoidance, depends on who you are - lol). But then they started cracking down on the whole "numbered account" scheme, started stripping away secrecy in Switzerland etc.
So where does that leave the offshore banking system nowadays? Where is there a stable/safe/secure alternative to US that pays better rates but in US dollars or Euros? Anyone do offshore banking?