Your Palm and mobile gadgets could possibly save your life, or at least save you from serious injury as this example I read at iPhone Central shows.
(As his friend teed off on the seventh hole, Mr. Koss was unfortunately standing within the firing line of the ball. “I thought I was out of the way enough,” he said, “but I guess not.” The drive from his companion’s 3 wood struck him in the side. According to The Physics of Golf page at the University of Alaska Fairbanks, golf balls can reach speeds of greater than 100 miles per hour in the hands of experienced golfers. That’s fast enough to do plenty damage and Mr. Koss was left with some ugly black and blue bumps and bruises. But the consequences could have been far worse.)
http://iphone.macworld.com/2007/08/saved_by_the_iphone_1.php