Is The iPhone 3G Liquid Sensor A Filthy Liar?

Is The iPhone 3G Liquid Sensor A Filthy Liar?

Here’s the $199 question. What does it take to set off the moisture sensor on an iPhone 3G? Immersion in water? Sweat from a vigorous workout? Using the phone on a humid day? The truth is somewhere on that continuum, and many iPhone users claim that their warranties have been unfairly voided when normal use set off the sensors.