It'd be very handy if the Facade's registerMediator and registerProxy methods would return the instance of the mediator/proxy which gets registered.
That way you can write this:
mediator = facade.registerMediator( new SomeMediator( someView ) )instead of:
mediator = new SomeMediator( someView );
facade.registerMediator( mediator )
I know, it's a silly and small thing, but everything which speeds up coding is welcome