My Nike iPod thingy was't detecting the sensor today . . . I wonder if the battery's dead? According to Apple, the battery should last over 1000 active hours, and should have given me a low battery signal. The last run I uploaded was on January 22nd, and the Nike website says I've run 137 miles at around 11:15 per mile. That's less that 27 hours total . . . hmmm . . .