The event is definitely the highlight of my conference calendar: a very diverse set of academics, industrial types and web hackers all mingle and argue till the early hours. There is also an expanded tutorial series (where David Scott and I plan to hold a session on constructing functional operating systems!), as well as BoF sessions for nailing down ideas with a smaller group of people.
The deadline for presentation proposals is June 15th (just a short abstract and bio required), so head over to the Call for Proposals and get writing!
If you are curious about past events, check out the videos from previous years. Two of my personal favourite talks are Eugene Letuchy talking about how they used Erlang at Facebook to build the popular chat functionality, and Marius Eriksen describing Scala for the geo-database at Twitter (embedded below).