ok so i have an iphone 4 and i was on the phone. long story short i was eating 2nd degree chips and it was lying on the phone and the call ended. i was confused so i called my friend back and it kept acting weird. I eventually found out that the bag interacts with the iphone!!! and the herrs bag too lol without any pressure or having your finger on the other side! just skimming the bag over the screen initiates it! try it ! lol just thought id post this, i havent heard or seen anything on the internet about it so i figured id tell 
