About 6 years ago or so, I didn't have Gmail address at that time. One of my friend helped me setup on Xbox Live and went with Hotmail email address. Now fast forward to today. I don't use Hotmail anymore. Gmail is my major email nowadays. Now, changing from Hotmail to Gmail isn't easy for me to do that, even on Xbox.com. As soon as I got to Xbox.com and clicked "My Account"; entered Gmail address and, all of suddenly it gave me newbie gamertag for 360. In my mind I was like "Uh-oh". Anyone care to explain how to change email address? It's quite frustrating for me right now.