When crowd-favorite zombie shooter Dead Trigger decided to drop its price from $0.99 to free, citing concerns over piracy, the tech world renewed its interest in an age-old debate: how bad is piracy for developers? Of course, any lost sale is money out of a developer's pocket (though it's important to distinguish between downloads and lost sales). However, the question should and needs to be answered: just how bad is the piracy problem on Android?