While the Microsoft Visual Studio Luanch event registration site has been up for the LA registration, it appears that they have opened registration to the public for most of the other locations. Yes, there are a few that are still not open so keep a watch but if your in one of the other lucky cities to have a chance you should check it out.
Be the first to register in your area....
Heres the link: http://www.microsoft.com/heroeshappenhere/register/default.mspx