I attended TechMesh 2012 in London. The creators of Haskell were there, and there was a number of other Haskell talks. They were almost all about how to model state, I/O, etc. One of the Haskell creators also created Quickcheck, a generative testing tool where tests are written in Haskell. He talked about how he found state related bugs in Riak. Rich Hickey, author of Clojure, was there, he keynoted about state. I'd argue that the whole point of Clojure is to manage state. Specifically, have a model for how to work with the passing of time.

In other words: functional programming and Lisp does not translate to ignoring state.