Nested data parallelism in Haskell (video)

"At the inaugural meeting of the London Haskell User Group, Simon Peyton Jones of Microsoft Research talks about his current work on nested data parallel processing in Haskell."

Video:

http://video.google.co.uk/videoplay?docid=370317485066035666&hl=en-GB

Corresponding slides:

http://research.microsoft.com/~simonpj/papers/ndp/NdpSlides.pdf

I think this is very inspiring work! Apologies if this has already been posted.