There were lots of problems running IntelliJ 13 under JDK7 on the Mac, many of them related to focus. Popups appearing behind the main window, keystrokes going to the editor when a modal dialog is visible, that kind of thing. Also none of the key bindings that include the alt key worked. It definitely wasn't ready.
Works brilliantly with JDK6 though, I can't recommend it enough.
Works brilliantly with JDK6 though, I can't recommend it enough.