pkgng is basically the next upgrade from the current package system/ports tree to having the possibility of having a full binary only system. pkg allows you to manage your packages using repositories that can provide your software, much like apt-get. On the plus side, you also get the power of the ports tree, so you can very easily compile newer packages yourself and host them as a repository, especially if you have to manage multiple FreeBSD systems.
http://wiki.freebsd.org/pkgng
pkgng is basically the next upgrade from the current package system/ports tree to having the possibility of having a full binary only system. pkg allows you to manage your packages using repositories that can provide your software, much like apt-get. On the plus side, you also get the power of the ports tree, so you can very easily compile newer packages yourself and host them as a repository, especially if you have to manage multiple FreeBSD systems.