Its the radio updates I really want. Right now, any time I use GPS & Navigation, the phone will reboot itself. Its a certainty. Really blows when I really needed Google Nav to get me to a destination and the damn thing reboots on the free way. Since its sitting in the storage tray next to my steering wheel, unless I pull it out and look, I usually have no way of knowing its hiccuped. I've missed exists, turns, etc. This is my biggest gripe with the Nexus. If this update doesn't resolve it, I'm going to push for a warranty exchange.
Yea I had it reboot in Middleoffreakingnowhere, Virginia last month, and I couldn't get a data signal when it rebooted it was so rural. So I was pretty much screwed since my cached route was gone at that point. I just kept driving on the road I was on until I got a signal and could get directions again.