The second beta of FreeBSD 7 has been released. "The 7.0-BETA2 builds have completed and are on many of the FreeBSD mirror sites. If you want to update an existing machine using cvsup use RELENG_7 as the branch tag. Instructions on using FreeBSD Update to perform a binary upgrade from FreeBSD 6.x to 7.0-BETA2 will be provided via the freebsd-stable list when available." Additionally, there's a discussion on supporting a subset of c++ in the FreeBSD kernel.