Multiverse

I am at the Austin Game Conference where the focus is on online and multiplayer games. The most exciting thing I have seen here is Multiverse, a website that provides you with the software to build your own massively multiplayer online game (MMOG). The really unique bit about it is that they only charge you to use their tools if you are charging your users to play. That means academicians and hobbyists can use it for free. Is this the beginning of the 3D equivalent to the blogosphere?