After delivering strategic zombie-bopping mayhem to the iPhone and iPod touch, Popcap Games’ much-lauded Plants vs. Zombies makes its Apple iPad debut. But this isn’t just Plants vs. Zombies, it’s Plants vs. Zombies HD. The difference? Multi-Touch support, a 1040 x 768 resolution, and butter. BUTTER.

“The iPad is a fantastic platform for gaming, and Plants vs. Zombies HD allows us to show off the great new features and functionality of this exciting device,” said Andrew Stein, director of mobile business development at PopCap. “In this adaptation, we’ve focused on the iPad’s Multi-Touch capabilities and opportunities for new gameplay like the Buttered Popcorn mini-game that will excite both new and current players.”

The Plants vs. Zombies HD app for iPad offers all 50 levels of Adventure and QuickPlay modes as well as Survival mode from the original Apple Macintosh and Windows PC game. It also includes four all-new achievements (for a total of 17) and 18 mini-games, including Buttered Popcorn – exclusive to the iPad – offering frantic and fun gameplay where players attack zombies by first “buttering” them up before firing corn-cob cannons at them. To defeat the growing hordes of zombies, players can touch them to place butter on their heads. With the Multi-Touch user interface, players can select up to eleven zombies at a time, targeted for “buttering” by the powerful cob cannons.

I told ya. Plants vs. Zombies HD is available now for $10.