Massive Multi-player platform software

#1 I hit their site like two years ago but I never really looked at the software.

#2 Actually have heard of it, but don't know much about it.

#3 I've messed around with it in Unity a bit. It's a pretty good deal, at least last I checked you could have up to a hundred concurrent users before you had to pay anything. In terms of realtime player updates I don't know how it compares in performance with Torque networking, but it does also organize lobbies and chats and so forth. Depends what you need, I guess.