i've had mine since this Spring and have put over 10,000 miles on it on the bike and a few more in the cage...it didn't recognize the mini sd card one time and when i pulled it out and reinserted it, it picked it right back up and i haven't had any problems since then...i haven't had any issues with late notifications at all
i have a Chatterbox installed on my helmet and a Blackberry phone which i carry either in my pants pocket or the Ventura pack mounted on the back of the bike so everything connects by bluetooth