There's a great summary about similar project with people who wanted to live off their cars/vans/RVs to cut costs.
The problem is, it's not cheaper and the quality of life isn't superior in terms of daily amenities like Internet, hot water and stone baked pizza.
I think there's a reason a majority of people only go for vacation once a year for a relatively short period of time.
I really fancy travel and I do travel a lot, but some types of work, do not mix with travel that well and by comparison, software related work, having a good and reliable connection to the Internet is one a few concessions I chose to make - by comparison to other jobs it's still great - I can work when I want, choose what I work on etc...
I finally settled down and built myself a small but nice office. It's in the middle of nowhere but it has stable Internet and it's quiet, so I get the job done, with no external distractions.
Still, if I chose to travel, and it was for a fixed amount of time (say a year or two), I'd probably look into the numbers and get a relatively small car rather than RV and stay in cheap motels/hotels such as Super 8 etc. or camp in a tent, when it's warm enough. Small car is much more nimble, will surely fit a laptop and you can go places where an RV won't fit.
If after half a year, you're tired of the idea, it means, financially, you're much better off and you don't have to worry about selling or parking the RV etc...