when can we get better partitioning?

hi
i was really more than happy when i saw table partitioning in release info
for 8.1.
then i tried to use it, and hit some serious problem (described on
pgsql-general).
basically the question is - is anybody at the moment working on improving
partitioning capabilities? like improving queries to partitioned tables with
"ORDER BY" and "LIMIT" statements?
if yes, when can we start thinking about release with this functionality?

i, my own, do not have enough c knowledge to do it by myself, yet i would
*really* like to have this feature improved, as it would save me and my
coworkers a lot of work and hassle that we face right now with rewriting
queries to ask directly partitions instead of master table, that got
partitioned.

best regards,

depesz