FYI.

There is a followup/related discussion to this question at

 http://article.gmane.org/gmane.emacs.orgmode/2451

and in particular

 http://article.gmane.org/gmane.emacs.orgmode/2457

"Moving email is trivial -- you just need to call

  gnus-summary-move-article

 to move things to the place you want to archive them. But that function
 does not return the URL of the moved article (as one might hope).

 So I see two possibilities, essentially:

  a) pull it out of the function and subfunctions

  b) (when moving to a backend that uses NOV databases, like nnfolder)
     pull it out of the NOV file, the last moved message is the last one
     on the list

 Of the two, method a) seems cleaner in principle, but it requires a
 fair amount of knowledge of the gnus internals -- and the change would
 have to make it back into gnus, otherwise the method could break
 inconveniently timed in the future.

 Method b) is easier and does not require changing the main body of gnus
 code, but is somewhat messy and inelegant.

 So in effect I was wondering whether I missed a method c) -- and
 whether anyone had already thought about either a) or b)."

Regards,
Georg

-- 
Georg C. F. Greve                                 <greve@fsfeurope.org>
Free Software Foundation Europe	                 (http://fsfeurope.org)
Join the Fellowship and protect your freedom!     (http://www.fsfe.org)
What everyone should know about DRM                   (http://DRM.info)