sorting threads by latest message

[Alexandre Oliva <oliva@lsd.ic.unicamp.br>]

Current thread sorting is somewhat sub-optimal for folders in which I
keep lots of old messages that I still have hope of reading or even
responding some day.  When a new message comes in that matches gnus'
concept of being in the same thread, it sometimes remains unnoticed
for weeks before I go through pages and pages of messages that are
either ticked or not marked at all and notice a difference in the
pattern I'm used it.

After I played a bit with gmail, I found it nice that, whenever a new
message was added to a thread (or whatever gmail calls it, I forget),
it would bring the entire group to my attention.

I'd love if gnus would do the same.  Is anything like this already
implemented in current gnus?  If not, is it in anyone else's plans?
Failing that, would others find this useful, i.e., should I plan on
contributing it once I implement it?

-- 
Alexandre Oliva         http://www.lsd.ic.unicamp.br/~oliva/
Red Hat Compiler Engineer   aoliva@{redhat.com, gcc.gnu.org}
Free Software Evangelist  oliva@{lsd.ic.unicamp.br, gnu.org}