My Google Summer of Code project for 2010 is "pkg_patch" - a utility and a framework for working with binary patches to FreeBSD binary packages. It is necessary because the default way of dealing with 3rd party applications / ports in most BSD systems is to build them from source via various frameworks like ports and pkgsrc, and so far the binary package side has been mostly neglected, at least in FreeBSD.
I strongly feel that the only thing that will help the adoption of binary packages (by making them useful) is to introduce the notion of "stable" ports but since I've repeatedly been told of the uselessness of banging on this particular drum, I'll leave it alone for others.
Anyway, most aspects of pkg_patch are described in the FreeBSD wiki, and these blog posts will deal with daily and miscellaneous information.