Sean Carey writes, "If there's one genre that is over-represented on the iPhone, it has got to be tower defense. With a minimal investment of money and people power, you can push a serviceable game out to the market in a short period of time. With a few exceptions (the excellent GeoDefense comes to mind), the platform is saturated with mediocre clones of clones of clones of TD standards.
It's no secret that the Gamer Limit crew went a bit ga-ga over the PC release of Plants Vs. Zombies; it came in runner up to Torchlight for best PC game in our 2009 Game of the Year Awards. With the transition to the iPhone, PopCap faced the twin challenges of recreating the original PvZ magic with a new control scheme/hardware and standing out amidst the shambling horde of tower defense offerings already available. Read on for the official Gamer Limit verdict!"