We took a drive to Napa County a couple weeks ago. I was expecting to be able to use my phone, but the Maps app froze somewhere in Suisun Valley. Now, I've updated to beta 3, so maybe the Maps app has improved. I don't know. That's the first time I used the turn-by-turn directions out in the backcountry. I'd like to know if this has been fixed in beta 3. If Maps becomes unusable in the backcountry, I might file a bug report.