"It appears that Facebook has quietly launched a new option in the settings area called "username" where you have the option to change your Facebook username. To find this option, go to "Settings" at the top-right of the Facebook page and then click on "Account Settings." The second option from the top is "Username." Press "Change" to enter in your new username and then click "Confirm" when you're ready to set it." - Dan Smith

That's basicly old news. I do that from month ago. Users have that info on FB front page couple weeks before change is happend. Change your profil link that before include some numbers to one clean link like for me is http://www.facebook.com/dzubovi... . - Damir Zubović

When Facebook originally allowed you to choose a username they said choose wisely because it would be set for life. Now it seems that you can change it at least once again! - Dan Smith