I've found a few issues.. (I didn't notice them in the beta.. but they may have been there.. I did a factory reset for R66)..
Bug #1: Note the screenshots... 1st, is the channel display on the web interface for the 2.4Ghz network. it says channel 6. When i click on it, it shows channel 9... big incongruity there.
Main Screen:

2.4Ghz Settings:

Bug #2: Seems to be some text formatting issues on the LCD for these error messages.

Possible Bug #3?: Noticed this in the system log:
Apr 4 04:04:49 AlmondPlus user.info sysinit: /etc/rc.local: line 4: /etc/init.d/d2: not found
Apr 4 04:04:49 AlmondPlus user.info sysinit: /etc/rc.local: line 5: /etc/d2/d2.remove: not found