Still skeptical? Do a Google search for your name, or try mine. For the longest time, my LinkedIn profile and now defunct blog about internet marketing used to show up as the first results, battling with other social networking profiles and websites. Today, it shows my public Twitter profile page as the number one result. The first thing anyone will click on when they do a search on my name. Thatís huge.
Their previous format was not optimal from a profile perspective. They have plenty of other areas to use the default Twitter / title.
I'm still not certain that I like the back to back stack like that.
Name (Username) on Twitter
If the person's name and username are the same, you of course have replication back to back. But, the parenthesis provide a natural separator so it works. I might have done something along these lines...
Name on Twitter @Username
That would be optimal as it targets the Name, Twitter and then the highly recognizable @Username syntax.