hi,
I was twitting about it a few days ago and now it's live and you may go , the sooner the better, and change your profile page url at facebook to something like that:
http:/www.facebook.com/aviavia
you may do it from here:
http://www.facebook.com/username/
No need to explain whay it's better than the way it was so far. :)
( some simple examples would be to print it on your business card, twitter page, email signuature and so on.)
I'm using that name, (aviavia) because at the time I started using it, it made me sense and it still does. Easy to remember and I'm using it in almost all of my accounts:
twitter.com/aviavia
aviavia.stumbleupon.com
friendfeed.com/aviavia
aviavia.mp
http://digg.com/users/aviavia
http://picasaweb.google.com/aviavia2
google.com/profiles/aviavia4u
youtube.com/aviavia4u
The best option would be to simply use your name, first and last. If it's busy, or very hard to be remembered or to be written correctly, think of something else, easier.
So please go to facebook, before they close the doors....