yepyep, not that I really need that but I read that blogpost too
easier to give your "FB url" to people/friends
just one bad thing that it's fixed forever, I wonder what's going to happen when the millions of fake profiles sign up with "popular names"
Your username must be at least five characters in length and only include alphanumeric characters (A-Z, 0-9), or a period or full stop ("."). While usernames are currently available only for Romanized text, we're looking at how we might support non-Romanized characters in the future.
It's kind of ridiculous they say "in the future". Or you make it work before you release it or you never implement it, especially for a site like Facebook.