Just say that as an idea but if Multiminer could manage from one place (desktop computer, mobile), many mining hardware and / or Rigs (many peoples still uses rigs for ltc or gld), it could be great.
Currently you can use MobileMiner to monitor and control your multiple mining rigs. The future plan is to allow MultiMiner to detect other instances of MultiMiner on a network and allow once instance to control all of them.