PopCap has released an update to its acclaimed Plants vs Zombies for the iPhone and iPod touch adding new content, minigames and achievements. Version 1.6 adds a new Zen Garden where users can collect, grow and care for their own collection of plants that will produce coins that can be spent in Crazy Dave’s shop. New minigames such as Zombiquarium, Zombotany and Raining Seeds have also been added to Crazy Dave’s shop, along with new Game…
