As of right now, this version will not build in Debian testing due to problems with g++-4.1 (see #383251). It works on unstable, and should work with either a slighly older g++-4.1 or g++-4.0. However, as CRAN runs Debian, it may not be until a fixed g++ hits testing that this package will hit the CRAN mirrors. There's always my page as a fallback.