Am I the only seeing relation between this and Azure Service Bus Queues, Topics, Notification Hubs and the whole Pub/Sub business that we have in the cloud already? To me it seems like yet another alternative to EAI.
It would be cool however to be able to send actors to a queue/topic that some remote service is subscribed to. Essentially spreading self contained bits of computation to whoever is interested in them in an organised manner (Pub/Sub, smart proxies which are part of service bus etc..). Ultimately leading to one centralized database of readily available actors that you and I could have access to (with or without subscription fee). From there on, mash up some actors together to create whatever application you desire and enjoy the new way of "LEGO" building.
One can but dream...