I did my first rating of an app the other day, and noticed that the user name it was posted as was the first part of an unused email address. I would have thought it I'd be prompted for user name, since it was my first time. And, now that I think about it, why did it not use (part or all of) my gmail account? Very strange. So... How/why did it use this name? And can I change it? If so, how? I tried going into the Play Store, and looking under Settings, but couldn't find anything helpful. Thanks!!