Doesn't it seem as though...

...a company could go into just the avatar side of virtual worlds and create an avatar that has compatible forms for each VW (licensed by each world), with a registered identity that then goes wherever the avatar goes? Doesn't it seem possible? Months and months ago I brought up the avatar identity clearinghouse idea, but this would go much further. In the case of someone having an avatar already in a VW the identity would just need to be linked, but the larger benefit would be the ability to roam at will with all your data in one place. Rather than the 3d web being a single "winner" it would be more fun if it were lots of worlds with lots of variety but with a less complicated way to skitter across the net.

I'm sure if it's a useful idea someone is already working on it.