[Boost-users] which variant code should I use?

It appears that there is a new variant library (boost::variant), but that it has been delayed. Also, there is the old boost.any library. And CUJ has a simple, ref-counted one here http://www.cuj.com/documents/s=8034/cuj0010cacciola/cacciola.htm. Also, CUJ has an article about boost::dynamic_any. Which should I use? I want to use one of the boost libraries, but I would like something small - meaning it won't addmuch to the size of my executable. Most boost libraries I can't use because they are too big (due to dependencies I assume). Thanks, Tom.