Im currently using PhpStorm PS-130.1639 in the new Mac OSX Mavericks (developer preview).
The main thing i've seen, is that i lost all menus for phpstorm, actually i have the PhpStorm menu, but no submenus, completly empty.
I undestand completely that im running on a developer preview and on a unstable OS. But the purpose of this post is just informative, and for Jetbrains Team in the future when Mavericks becames stable, to fix this issue.
PhpStorm in OSX Mavericks