Can't find a Garmin VIRB product so gotta post this here:
VIRB won't recognized my speed & cadence sensor, not on 2.80 or any prior version of the unit's software.
http://www.youtube.com/watch?v=Ggf2AkUftnE&feature=youtu.be
Also, since upgrading to 2.80, I'm getting lockups when I slide the record switch to off. Only way out is to pull the battery. And, I'm getting some green screen looking video at the front of some clips now. Neither of these was a problem prior to 2.80.