Thanks. I don't think it does that yet, no. I'd recommend you to check out https://github.com/psanford/wormhole-william for the implementation that I am using.
You can use https://github.com/saljam/webwormhole if you want P2P file transfer.
It only has a CLI tool right now for desktops. It works in the browser though, so that is great for users looking for a GUI!
It is literally using the same wormhole-william backend that I am using for wormhole-gui. I don't quite see how that would be any different. Interestingly enough, I have actually never gotten that one to work :)
Does wormhole do any hole punching yet? Looks like https://github.com/magic-wormhole/magic-wormhole/issues/6 is still open. I think if that issues gets tackled this would be a pretty amazing tool.