The second question people ask is "How's the cost of living."
The answer to the first is, "Work at it." The second is, "Very".
Chris Dunphy and Cherie Ve Ard spent about six months living on the island while they plied their trade as software developers. They call themselves Technomads and delight in seeing the world while logging on and building their business wherever they are. They have published a successful iPhone app showing cell phone coverage around the USA.
While on the island, they rented an efficiency apartment for $700/month. That included electricity. They had to buy propane for their stove.
Staying connected cost about $240 a month. That covered Hughesnet for Internet (via DishandDat Choice WiFi), two iPhones and a Sprint data card. "Connectivity is what makes our digitally nomadic lifestyle possible."