Re: Making a living as a liveaboard
I just went to the Los Angeles Ruby Conference last week, and it was interesting to see that LOTS of companies are now "office free" where everyone works from wherever they happen to be. Many, perhaps most, worked from diverse and mobile locations.
Skype works better -- much better -- than cell phones. Its easy to find WiFi hot spots even in the apparently most primitive islands. Ditch the cell iPhone for an iPad Touch.
I have found that by looking around a bit, its easy to find the WiFi, and then to arrange phone calls or even video calls if the bandwidth is stable and fast enough (usually the case).
Using Git, and pushing and pulling when at WiFi, is a professional way to get things done.