Cool! This is probably the simplest way to access files from your home computer while you're on the road. You just create a new mesh, and then create two logins, one for the home computer and one for your USB drive. Set your home computer to share the full contents of its hard drive and to accept incoming connections and then you can access those files from any Windows computer in the world using the USB drive. Since you won't invite anyone else to join this particular mesh you can be sure your files will be secure.
Now that you mention it, it should have been obvious, and for all I know people are already doing it. But I'm still glad you posted it, AngryGnome.