XFire is an instant messenger program that sits in your system tray and monitors your active tasks for certain games. It will then display to everyone who has you on their list, what game you are playing and what server you are on.
Check it out at
www.xfire.com
If you sign up, enter your username into your
profile and it will show up to the left.
<------
You may not get a profile name that you want, but you can edit name format that other people see in options for XFire.