Plants vs. Zombies Adventures available now on Facebook

After 2 months in closed beta, the casual iteration of everyone's favorite tower defense game is now free-to-play worldwide to all users of Facebook.  Popcaps new Plants Vs Zombies Adventures looks to combine the tower defense game play of the original Plants Vs Zombies with a new town building mechanic. However, this social iteration in the series is unrelated to the upcoming Plants Vs Zombies 2, coming out this summer.