The aviation industry is one we are heavily reliant on, and which greases the wheels of international commerce. When an airline is beset by strikes, affected by ash clouds or when they decide to lock-out its staff, the cost to national and international economies frequently reach billions in lost productivity. While Cisco projects that 90% of all data on-line will be video by 2014, and have managed to cut their own travel costs by 80% as a result of adopting their own telepresence systems, it seems like the rest of the economy is lagging behind, and that an interface hasn't been able to replace a human face in human interactions yet.