Interesting post.

With shopping (your last point), a lot of people are already very comfortable shopping for metabrands.

In worlds like Second Life, people tend to purchase items to enhance their appearance. So, this presents an interesting aspect of interoperability – how will items such as clothes be translated and taken from one world to another.

In worlds like There, the avatars seem more open to the presence of brands so an area of interest to marketers and brand owners in this context is how to manage brands cross-world.

Cheers, Nic