For those interested, the review of the Phoenix library starts today. From the library description:

Phoenix enables Functional Programming (FP) in C++. The design and implementation of Phoenix is highly influenced by FC++ by Yannis Smaragdakis and Brian McNamara and the BLL (Boost Lambda Library) by Jaakko Jaarvi and Gary Powell. Phoenix is a blend of FC++ and BLL using the implementation techniques used in the Spirit inline parser.

Phoenix is meant to be an advanced replacement for boost.lambda.

If you are interested on the topic, want to comment on the design or simply want to support its inclusion into boost, write a review or at least make your voice be heard on the boost mailing list.

Here is a link to the documentation.