Hi café, Hac Phi, a yearly weekend of Haskell in Philadelphia, will take place Nov. 6-8, hosted at the University of Pennsylvania. Hac Phi is a gathering of hackers and Haskell enthusiasts. Come bring a project you're working on or offer to help someone else on a project of theirs. Come give a talk if you've got something to share. Come to learn something new. Though the event has the same structure as in previous years, it has been renamed from a Haskell Hackathon to a Haskell Exchange (not to be confused with The Haskell eXchange, a different event.) The organizers felt that the title "hackathon" has been given to events too unlike Hac Phi, events where participants code under pressure or over long times in competition. Those are fun affairs, indeed... but they're not like Hac Phi. So, we now say that Hac Phi is a yearly Haskell Exchange, where academics, professionals, and hobbyists can all meet, mingle, hack on each others' projects, and generally have a good time. All the details are on the wiki page: https://wiki.haskell.org/Hac_Phi I hope to see you there! Richard