Per recent discussion, today is the tarball wrap day for beta3.
I plan to wrap the tarballs around 2200 UTC. I will have the
libpq single-row mode patch in before then, and if time permits
I'll see if I understand how to fix SPGiST now. It'd be nice if
relevant people could review and commit the available patches for
other 9.2 open issues ...
http://wiki.postgresql.org/wiki/PostgreSQL_9.2_Open_Items
regards, tom lane