On exiting simple full screen mode on OS X Lion (10.7.4), the main OS X menu bar for Sublime text disappears. This only occurs when using "use_simple_full_screen" mode. The menu can be made to reappear by switching to a different application and then switching back.
I can replicate the bug by doing the following:
0. "use_simple_full_screen": true
1. Select "Enter Full Screen"
2. Select "Exit Full Screen" (menu is gone)
3. Switch to different app
4. Switch back (menu is back)