9to5Mac is reporting that AppleCare support staff has started training on how to use and support OS X Mavericks. The training regime will include learning about new features, troubleshooting, and how to install the new OS.
Courtesy of Apple
OS X Mavericks' release date is still not known, other than "sometime this fall." But with AppleCare support staff starting to gear up for helping Mac users with the new OS, it's likely that a general release will come soon, perhaps this month.
I'm of the opinion that OS X Mavericks will be released alongside the new 2013 Mac Pro. If I'm right, then those of us who are waiting on the new cylindrical Mac Pro won't have too much longer to wait.