It may be only a small portion of the flying community attending but NATS have been organising days where controllers and pilots alike attend for a day's "discussion". I found mine very useful - attended by AC, TC and LHR APP controllers with Virgin & BA captains & FO's as well as a couple of corporate jet guys (I forget their ranks). NATS have been running this for over 6 months now, I actually wish it could have been run over 3 days but at least one day was a start.
5milesbaby, are there any tower controllers involved in these days?
I find it ironic, but par for the course, that an anonymous internet forum is the first I've heard about such days too.