Interesting — haven’t used FB Messenger much, but definitely seems like it could be useful for that sort of thing. Some sort of app, at least! Not sure whether it’s more likely something integrated w/ Facebook, or a standalone app from a startup yet to come that’s more focused on this specific problem…seamless payments would be key but just one of many challenges. Google did something recently w/ expert Hangouts (called “Helpouts”) but seems like it never got traction and they’re shutting it down…