The funding initiative that was put together for the GiST concurrency
and recovery enhancements has gotten a write up at Newsforge, for
those interested:
http://programming.newsforge.com/programming/05/10/12/1815254.shtml
In general, it would be nice if there was a more formal way for
companies to be involved in the PgSQL development process, for those
who do not have the money (or the stones) to hire a developer full
time outright. Josh touches on this in his comments.
Paul