I have been a nomad for the past few years and I expect this trend to get bigger in time as more people moving to work remotely.
I'm looking to start a business around this area - what do you think are the biggest opportunities for remote work?
Crowd sourcing ideas like this pretty much never works. You've been living the life for a few years now. What are your problems, what are the problems of your friends? Try to solve one of them.
The nomads I experienced when travelling tended to be dirt cheap though and they are often broke so keep that in mind when you're developing your ideas.