Not directly DragonFly-related, but good to think about: the amount of effort you put into reporting bugs often pays off proportionally.
The DevFS Summer of Code project is going into DragonFly this weekend; be ready for surprises if you update.  It's not complete yet; there's a few more weeks for Summer of Code, but there's other work that this code will enable.
Sepherosa Ziehau working on merging some of Alexander Polakov's ACPI work; testers needed.  If you have a system that pitches a fit with ACPI enabled, you would make a perfect subject.
For those people who use a variety of dynamic languages, but haven't yet hit C: Just Enough C For Open Source Projects has a brief but comprehensive run through the basic parts.  The page linked is about the presentation, but the slides are available on there as a tarball.  (Via)  I could have used this a few days ago.
Google has published some inital statistics from the 2009 midterms.  This covers all Summer of Code projects, not just DragonFly. Remember, projects are due August 17th at the very latest.
The latest quarterly release of pkgsrc, 2009Q2, is out.  The release announcement has details on what's new.
The system, where developer accounts are located, has had a significant bump in CPU and RAM, and has the newest scripts for automated vkernel setup. As always, leaf accounts are available for anyone who wants to develop something on DragonFly, independent of commit access.
Release 2.3.2 has been tagged, for anyone who wants to stick with DragonFly past the current release but before the recent radical changes to NFS.  Check the commit message for a summary of what's changed since 2.3.1, taken from the commit messages.
Peter Avalos has updated gzip, with a far longer list of updates than I would have thought possible with a utility that's been around for a while.
Matthew Dillon made some major changes to NFS, which have greatly improved speed.  He's also made the clients able to write asychronously, which can overwhelm a server because of this increased throughput.  Be careful.
Hey, look at what Michael Neumann's doing: making Hammer expandable!  It will be possible to expand your Hammer volumes while online, even. (note: it's experimental; don't be surprised if it destroys data.)
DragonFly has its first 10G network driver, mxge(4), for the Myricom Myri10GE.  Aggelos Economopoulos ported it from FreeBSD. Check his post for notes and credits for the people who helped out.
Michael Neumann has removed the PRISON_ROOT flag, and has changed jail(8) code to use only prison_priv_check() to check for allowed operations.  This won't mean anything from a user standpoint, but it does make programming easier.