@hnyman
Have you been having any wireless issues with the latest r40780 revision? All my devices connect for a few seconds and then immediately disconnect. I had initially tried with my own custom compile, and then did a full factory reset through TFTP of that same firmware but still, no luck.
I then tried your revision on dropbox and same issue :-/ Both factory and sysupgrade versions have trouble with clients staying connected. Just for kicks I tried out your revision r40772 and the wireless worked fine. I just tried compiling the latest revision that was pushed out 40801 and it looks like there's a bunch of 802.11 patches.
Anyways, I might also push by build to match yours, seeing as how something clearly broke with the mac80211 drivers. I actually can't even compile all the way with 40801, it does seem to get stuck on the new 80211 update.
make[3]: Entering directory `/home/user/code/openwrt/trunk/package/kernel/mac80211'
make[3]: *** [/home/user/code/openwrt/trunk/build_dir/target-mips_34kc_uClibc-0.9.33.2/linux-ar71xx_generic/compat-wireless-2014-05-19/.configured_ynnnnnnnnnnnnnnnnnnnnnnnnnnnnyynnynnnnnnnnnnnnnnnnnnnnnnnnyynnnnnnn] Error 1
make[2]: *** [package/kernel/mac80211/compile] Error 2
make[1]: *** [/home/user/code/openwrt/trunk/staging_dir/target-mips_34kc_uClibc-0.9.33.2/stamp/.package_compile] Error 2
make: *** [world] Error 2