As you may have discovered by now, OS X Lion has killed the “File > Save As…” command. The change has taken effect in apps such as TextEdit, Preview and Pages. More apps are expected to follow suite when they update to support OS X Lion.
The “File > Save As…” function is now sorted of being replaced by the new “File > Duplicate” command. But there are differences. This is a big deal if you rely heavily on “Save As…” in your document workflow, as the new “File > Duplicate” command double the steps required.
In the old way using “File > Save As…”, you simply enter a new document name, click the Save button, and you can start working on the new document.
When you issue “File > Duplicate” command, a new document window will appear with a copy of the same document content. You then have to issue “File > Save…” to actually save the new document as file.
This changes might appear more consumer friendly, but it is a pain to adjust to for many who are used to the long time computing “File > Save As…” workflow.