I've purchase the Unisolar, but not installed. I'm still debating using regular panels for more watts. Formulas suggest I should have between 500-1000 watts of solar. I probably can't make 500 with unisolar
The Uni-solar are peel and stick. There are instructions on the Uni-solar site.
Mobile application doesn't follow the warranty or the installation instructions. But I've followed Uni-solar for years and never heard of a problem. Unisolar's characteristics are unique and there's nothing similar for an installed rugged mobile application.
I have seen some 12v 30-40w regular panels for <$200. It takes time shopping for the best shipped price. Personally I would only buy an expensive folding kit for backpacking.
I was looking at this one yesterday and almost bougt one with a $30 controller they have
http://www.laviesolar.com/pro_show.asp?id=44
That looks like a good deal. I would want to measure the voltage on the battery side on such an inexpensive controller.