Virtual World offers simultanous viewing of spaces, complete with in-world chat and music. With or without factors such as materials and structural engineering, enviromental attributes, budgets, the purest of architectural design can materialize. Replication of existing projects, new projects or for that matter non-projects of the highest abstract formations can take place. Rarely can such a position be presented by most subjective of designers however, doing so leads to new ideas.
It is important to keep in mind that if Masters of Architecture had virtual world tools, just how much would building design change? We see these explosions of changes every single issue of design magazines or for that matter virtual worlds. The concentration by old school details of creating various views can now be organzined and given certain strengths. I do realize that someone with a mind like Frank Lloyd Wright may have been a bit too set to ever use it, had it been available.