If you thought Facebook was taking over casual gaming, by offering browser-based options of some of your (old) favourites, you should have a look at what Blizzard are doing. We've known of them to include mini-games within World of WarCraft in the past with the likes of Bejewelled or Peggle, but their latest inclusion takes the cake.
As part of an actual quest, the team have included a Plants Vs Zombies mini-game in obvious homage to the popular tower-defence title, as part of their next expansion, Cataclysm
which officially releases later this year.
What other games could they include in WoW as mini-game?