Well, I knew it would happen soon enough. People have started using Second Life as an AI platform. There is an article on KurzweilAI.net about a project by Rensselaer Polytechnic Institute researchers doing exactly that.
Rensselaer Polytechnic Institute researchers unveiled “Eddie,” a 4-year-old virtual child in Second Life who can reason about his own beliefs to draw conclusions in a manner that matches human children his age.
I thought the following bit was amusing, however.
This research is supported by IBM and other outside sponsors, and the team hopes to engineer a version of the Star Trek holodeck.
If you are going to be shooting for a holodeck experience, you have a long way to go from Second Life.