Interesting project. There would be definitely lot of demand if it works better (faster, more reliable) than centralized solutions. There are some distributed storage projects that works for static pages or client-side applications (StrorJ or Maidsafe) but I don't think there are truly distributed solutions allowing generic server-side processing because it's very complex problem where you need not only storage but also computation processing and handling state in distributed network. Today you have partial solutions across various crypto projects each focusing certain specific and definitely their performance is still far beyond even average centralized solution.