My GPS F'ed me the other day. It refused to lock on after flying into MCI and in my rental car. Ironically, My last trip here I was testing a DROID. Same thing happened. multiple reboots etc, never got a lock on.
Googles excuse = its a lab APP... still beta. WTF. after tooling around being lost, I pulled out my handheld garmin with the latest maps. I got an instant lock on, but the piece-o-crap could not find the addy. My iPad 3G saved the day and I ended up only 20 min late to my client.
Later that night when I Flew back, my N1 got instant lock on, even in the parking garage.