I've just uploaded the slides for all the talks given at the Haskell Implementors Workshop 2011 - just click on "Slides" next to any of the talks. Many thanks to all the speakers for very interesting talks, and for sending me their slides.
There will be video, hosted on either YouTube or Vimeo, at some point in the future. I've got all the copyright permission forms, but I don't yet have the video footage. I'm currently working to get a copy of the video sent from Japan.