Thanks for update #2! Only played through the first level to see if the camera bug and save bug had been resolved, there were no camera issues and I can also view the level 1 finale video now. I can confirm that the save bug is still present -- didn't save settings, stats, or game progress. It continues to save my files to "Shank2/users" rather than just Shank2.
For the earlier poster who asked about release notes:
Shank 2 Linux/Mac update 2
Mac version stores log files and savegames to <username>/Library/Klei/Shank2, Linux version to ~/.klei/shank2.
-Gamepad/joystick controllers should now function properly (Fixed already in Update 1).
-Camera problems on Mac should be resolved.
-Savegames should function properly on Linux, Mac might still have problems.
-Gamepad/joystick button icons should be more sensible, if not yet totally correct.
-Fixed minor glitch in blur effect.
-Fixed resolution listing in display mode selection.