Yeah. I'm pretty sure that if you change your name and someone happens to pick it up after you've got your new name, you can't get your old one back. But I'd assume that you can change back to your old name after a set time if it's still not used when you want to change back.You can only change your name if you are a premium member? I am assuming the name has to be unique and no two people can have the same name? Are all of the ones you create reserved for you so you can switch back if you want? Or once you change it, you lose it and someone else can use it?