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Tanaka: It hasn't been confirmed yet, but we would like to give incentives to the players. First of all, FFXI has 32 worlds, and they may have the same name across different worlds, as I'm sure you know. Each name in each world has to be a unique; there can't be conflicts with other players. However, when we have FFXIV, we still don't know how many worlds there's going to be yet, but players might have the same name if they all move to the same world, so there may be conflicts. So, to avoid that, what we're trying to do is add a surname to their name, so players can keep their main name, but they can add something else to their surname - that way players with overlapping names can keep their names from FFXI, but they can add something on to it to make it unique.
I like having a last name. All my characters end up having one when I write their histories.