This upgrade has been announced.
Includes following which sounds interesting - Focus stacking and focus bracketing .
No doubt focus stacking results will not be as effective as doing it yourself in some external software , but the ability to do it in camera may be useful for those of us who just want the option to do it occasionally . Has anyone tried it yet?
- - - Updated - - -
I got a bit excited . Apparently firmware update is not out until November.