Pretty impressive for a small island.
A few years ago, I asked the reservations people at Catered To (the four-star management company which oversees our villa) if they were getting requests for Wifi access. "Nope," they said, perhaps not even aware of what it was. Blue Tang's had Wifi for seven years.
By the way, the Westin St. John Resort Wifi network? While the little icon shows it's open, it's not really. You have to go through an authorization and, if your a guest, your name and room number are matched to give you access.