I have been corresponding with Jon over at StClairSoft.com about the upcoming release of Default Folder X version 4. There is no secret about just how much I have come to rely upon this application. I've been running the beta of version 4.0 for the last week and can report that when it releases in December, you won't be disappointed.
The additions to your save and open dialogue box now look ... well... more "leopardy". Even more important, however, is the quicklook style box below that previews whatever image, document, or file you are contemplating opening. It doesn't allow you to page through documents. Apparently Apple has not opened that particular part of quicklook to the development community. The upgrade price will cost $14.95 but free fro those people who bought Default Folder X after June 1.