Popcap's iconic game Plants vs. Zombies has been a top seller on both the iPad and the iPhone since it was introduced to iOS in 2010. Though it has been offered at a reduced price multiple times, the app has never before been available for free, until today, because of Apple's App of the Week promotion. Plants vs. Zombies is a lane defense game where players use a variety of defensive plants to fight off waves of attacking zombies. Thanks to its cartoonish graphics and strategic gameplay, Plants vs. Zombies is a game that is popular with both serious and casual gamers. The game features 50 levels of traditional gameplay, along with a never-ending survival mode, a Zen Garden, and an arr