I have to chime in here, I just came back from the Abacos and fully agree that the
WiFi situation is much better than in the
Exumas. I used Skype daily, it worked great (purchase a headset with mic for your laptop). I also purchased a 500mW ALFA
Network amplifier from Ebay ($60, I think) which is powered via a USB port on my
laptop, Then purchased a 9 Dbi
antenna with a 6 foot SMA cable (2 for $14,again from Ebay, make sure you have a back up if you drop it, it will break) which connects directly to the amp, or you could buy a
marine antenna for about $100. The system worked great, I pulled in open signals every place we went. The hardest place was Marsh Harbor, I learned quickly that if there is an
internet cafe near the anchorage, go buy a drink and they will give you the password to log in, with the amp and antenna on my
boat, 90% of the time I could still grab the signal and make Skype calls from the comfort of my
boat.
My solution is not
marine grade and works for only one
laptop at a time, but it cost less than $75 and it worked fine.