These are great questions. See my latest blog post at Thanks for the great tip for a story.
It discusses all of the various options of getting around by road, air and sea!
It's all pretty safe and well regulated. I use the taxis most and often use the buses which are plentiful in the capital city of Praia. They are both cheap.
Arnand, you're right! I think the problem may have been that the link was too long and did not fit on your screens. So I shortened it. here is the itty bitty version of the link about transportation in Cape Verde: