It looks like the co-venture Curious Labs and Adobe are doing now. Adobe has created a virtual world generator plug in, avatars from poser can be used according to Adobe though Curious Labs only mentions Avatars for the pro pack. I am willing to bet you could easly make Avatars for this plug in your talking about using poser. Well maybe not easily, but I am sure it can be done with co-operation form the company. The question is would the profits out way the cost of resources to pursue such a venture. Have you tried the software?