While most people are excited about slow removal of big giant lock, work on multi-core aware network/PF, and pledge I am surprised nobody mentioned that somebody posted diff which brings WAPBL to OpenBSD.
http://marc.info/?l=openbsd-tech&m=144561370912073&w=2
That is truly spectacular development. When it comes to embedded devices WAPBL is second to none. I hope that along the way OpenBSD developers will clean the bugs which were hindering adoption of this file system since Wasabi Systems released in 2009 under BSD license.