[kynikos]

Instead of trying to piggyback on to something that's just a new industry, see if you can find something that is a new niche within an industry you're already familiar with or are interested in working in.

I'd also recommend against freelancing as a first step towards starting a company. Finding freelance work in itself can be a huge distraction towards your end goal of creating a product--not to mention the actual work, dealing with clients, etc.

Think about problems you or maybe your employers have faced in the past and how a product might've solved that problem or at least facilitated its resolution.

From there, do some googling, find some market research studies, talk to people in the industry you want to break in to.

Unfortunately it can be hard to track down credible information among the millions of "expert" blogs that populate most search results. The best source of market data I've found to date is actually my old college's library. Now that my student account is long since decommissioned, they do offer paid access to info databases for alumni at a reduced rate.