Generating diffs

All,

You probably already know this, but thought I would let everyone know 
(since this came up today at the f2f):

Using OO, I can generate a PDF with no diffs as well as with diffs that 
show up in .sxw (by changing what is viewed in my window 
(edit->changes-show)).

Using OO, I can also compare two different versions and generate a 
diff-ed up version (edit->compare_document).

So we can generate diff-ed up version between 2 WDs as well as 2 CDs.

-Anish
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