A Lock-Free Hash Table - Cliff Click

My apologies if you've all already seen this.

...floating around on Slashdot right now:
http://video.google.com/videoplay?docid=2139967204534450862

In summary Dr. Cliff Click has written a concurrent data structure
that gets around what many considered intrinsic barriers to
multi-threaded programming. His talk is very accessible and he makes
an interesting use of a Finite State machine as proof-of-correctness.
I'd love to hear this groups take on Azul and these techniques. I'm
also curious if many Java programmers in the triangle have to deal
with concurrency themselves or if they happily let Spring/J2EE take
care of the issues by marking things transactional.

The interesting bit in Click's talk (at least to me) is that he has a
concurrent data structure that is thread safe and doesn't make use of
a single lock or synchronize. (If he is I'm missing it and would love
to be corrected.)

-- 
/** Shawn.Hartsock http://hartsock.blogspot.com/ //*/