Qi is certainly a nice project and building hardware for free software in a community is probably really fun. I don't quite understand though, why hardware should be patent-free? Patents in the physical world actually serve a purpose and there are no problems with them there, in theory. It's the software world where patents become simply absurd. If you build a new piece of hardware and are able to make it superior to old stuff in some way, why not have a patent for the hardware? So that only you can build this piece for some time, not to hinder others to use it within their software projects that is.

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