Example- Went into the city over the weekend, pulled out the droid and said,"Watch this!" Turned on "maps", which opened showing my location as being back home and, zap!, turned itself off completely. Not good in a crowd of onlookers. I turned it back on, put it in my pocket and walked a block, pulled it back out and it was off again. This went on for several more tries. Yes, the battery is at a full charge. Yes, I had 4 bars of coverage. No, I have no idea why this contraption tempts me to skip it across san fran bay but, its gonna happen!!!