Yeah, various people have been working on stuff like this for a while. Check out Storj and Maidsafe for projects that have talked about distributed fileservers in various forms.

You must have posted this at almost exactly the same time as I found this Patent, apparently filed by Verizon (huge US mobile phone company): https://www.google.com/patents/US9338148

It uses the word "blockchain" a lot, and though I didn't read it in detail, there are various aspects that make it sound like they're actually legitimately talking about blockchain technology.