I just upgraded to Mountain Lion. I don't really find any of the changes useful...reminders, notes...(thats about all I could see). I have no webcam so facetime is useless and all my friends have blackberry's...so imessage is useless too... BUT, I did load up pages and to my disbelief...."SAVE AS" was an option...I was so happy. Quicktime still has the duplicate feature... but i also have quicktime 7 and it has the 'SAVE AS' feature... this was only the reason stopping me from upgrading my laptop...(I have 2 macs)...but now that SAVE AS is back...I think its time to bring the entire mac family on to the same level.
You may want to test it. I haven't yet - but what I read is that it still saves the original you are working on with changes. For example, you open Document123 and make a few changes then click Save As and create Document456. Close the file and then re-open Document123 and it has the changes as well. So it is still auto-saving.
As I said, I have not tested this yet - only read about it.
If one edits a document, then chooses Save As, then BOTH the edited original document and the copy are saved, thus not only saving a new copy, but silently saving the original with the same changes, thus overwriting the original. If you notice this auto-whack, you can “Revert To” the older version*** (manually), but if you don’t notice, then at some later date you’ll be in for a confusing surprise. And maybe an OMG-what-happened (consider a customer invoice that was overwritten).
SO about this whole save thing.... say you open a file and do something to it and then exit without saving or you just open it to look and do nothing, does it ask you if you want to save the changes or does it just exit and save everything automatically?