Originally Posted by EvilMole

But there's no real possibility in that system for your "physical" identity or your inventory to remain consistent across sims, unless as part of the handover process your entire asset inventory was copied over between servers. That, of course, basically means that all items effectively become full permissions at all times - you are giving the owner of each sim a copy of everything you own. Also, it would make it very simply to "clone" avatars, including their name and identity, and make it impossible to ensure that "Joshua Nightshade" was really you.