Colin, I had one snafu with the alarm this weekend, but not 100% sure if i know what caused it. I tested alarms early for upper limit and they worked fine. I set an upper limit on a probe at 195 and got the pitdroid icon on the notification bar. Over the next 15 hours, while it cooked, i impatiently checked temps at least 20 times. When the alarm didn't sound I checked and it had gone over, the alarm was still set, the temp value was red in color and the pitdroid icon was not in the notifier area. Any idea what i could have done wrong? No harm done, It only went over 2 degrees and the pork shoulder was tasty.