[Haskell-cafe] What to say about Haskell?

Hello all, I was asked to give a one-hour 'introductory' seminar on Haskell. The audience is a bunch of very clever people with a wider than usual perspective on programming and mathematics, and my talk should be rather informational than evangelistic. Which topics do you think I should touch by all means given the short time? Gergely -- http://www.fastmail.fm - Same, same, but different...