Got another one for everyone. I've mentioned a few times that I don't think my alarm sounds in the morning. In fact, as soon as I got Jelly Bean on my Bionic I didn't think it was regularly going off. So, today, I needed to set an alarm for one hour away. I used OK Google Now to do it and when I returned to the home screen I saw a little blue line appear under the alarm clock in the command center. That seemed odd, I hadn't noticed it before, but if it was indicating an alarm, it should have already been there, right. So, that alarm went off and the little line went back to gray. I waited a while, wondering if maybe the line doesn't turn blue unless the alarm is set to go off within a given amount of hours (4?6?8?). Never did turn on (it's a little over 6 hours away right now). I just went an turned my morning alarm off and back on and the line turned blue. That makes me wonder if the alarm wasn't going to go off in the morning.
When I had my Bionic I was in the habit of turning my alarm off and back on each night before I went to bed to make sure it would go off in the morning and then using a back up alarm out of the app store just in case.