Sirikata Teaser from Sirikata on Vimeo.
* Sirikata is an BSD licensed open source platform for virtual worlds. We aim to provide a set of libraries and protocols which can be used to deploy a virtual world, as well as fully featured sample implementations of services for hosting and deploying these worlds.
* We are aiming for an alpha release in Q2 2009 and this video teaser should give you some sense of what to expect.