It was very low at the priority list and the reason for that had everything to do with the surprising complexity of the task which has everything to do with the multiplayer side of things. The risk of it breaking things too much was judged too high and we didn't think it was worth it. It was never removed from the task list however, and it's been moving up recently, so we might still end up surprising even ourselves by it being included in a next version of the game.