About the wifi, the built in wifi needs blobs (chip is soldered) but you can
use a USB dongle. ThinkPenguin and Tehnoetic sell these, there are also other
AR9271 dongles that you can find online. So, at least some choices there.
I've not used this laptop yet, but will get one soon. Paul Kocialkowski from
the Replicant project ported it to libreboot. He's working on documentation
(including installation instructions) at the time of writing, last I spoke to
him on IRC. The actual board support is in libreboot, and it builds (and
works).
It'll likely be some time before next release, but you can build it from
libreboot.git. Follow the instructions on
http://libreboot.org/docs/git/index.html