So far Mountain Lion looks pretty good. However, there is always room for improvements. What improvements would you like to see? Here is my list. 1. Versions like option to turn off this feature for several apps. 2. Restore Save As (Save As did two things easily, new name, new location). 3. Resume Id like to have the option to turn this "feature" off. 4. Option in System Preferences to eliminate reopen windows next time. 5. Automatic Application Termination I would like the option to decide which applications auto terminate and which do not. See http://vimeo.com/34711608 6. Restore option for colored icons in finder sidebar - Colored icons really help in providing tech support to clients. 7. Restore Quick Look zoom in on pdfs. 8. Columns that resize properly in Kind View". 9. Optional restoration of scroll arrows. 10. Need an option to set both mouse pointer speed and acceleration curve. 11. Option to set Green Zoom button behavior. As it stands now it is up to each developer how this function works. 12. Focus on application compatibility such as Java, Photoshop and other applications that are still using legacy technology.