I think some people overblow the lawsuit risk in the US. It really does suck here, however one of the benefits to certain types of innovation is that the US has a lot of IP protection infrastructure. Which stiffles innovation in a lot of ways, but also makes investment easier in some cases.
This is true in a way. We are all very free to research and innovate, it is just when you get it in your mind to actually make any money that the lawsuits show up.
