Puerto Rican Wi-Fi operator uses cell towers to distribute access: Island Hop isn't trying to unwire the entire island, but is bringing service to resorts and residences. The wait for DSL is a month on the north end of the island, but Island Hop brings in Wi-Fi-based broadband in about three days. Resorts are unwiring their entire compounds, too. There's already fiber to the island, although the article says it needs to be "updated," which probably means just new equipment on either end to deal with more capacity.
Interestingly, Vieques may be sparking a resurgence in an effort to unwire Puerto Rico's main island one near Vieques. About 1,200 to 2,000 offices are hooked up wirelessly through an earlier effort. That project was supposed to help bring Internet access to more residents, and that might be getting back on track.
There's no criticism in this article in Forbes, bastion of the free market, about the idea that the government is driving this part of the effort!