Popcap have released an update to Plants vs. Zombies on the iPhone and iPad. It comes as the closest we’ve seen to DLC on iOS, via an in-app purchase for the Last Stand Game Pack. Interesting. Here’s the change log:

Make Your Stand
The Last Stand Game Pack (100,000 coins for in-app purchase of $.99) features 5 new levels, plus Last Stand Endless mode that provides an exciting new variant of the game’s classic Endless mode.

Achieve Greatness
Unlock 3 new achievements: Hammer Time, Still Standing and The Stuff of Legends, which bring the game’s total achievements to 48 for iPad and 47 for iPhone.

As Smart as a Bag of Hammers
Pick up a new Mallet Pack to help whack zombies in Survival and Last Stand Endless modes. Check out Crazy Dave’s Shop for more details.

Full Retina Display Support for iPad
Enjoy sharp, crisp graphics that enhance the playing experience for iPad.

via: Plants vs. Zombies HD (for iPad) source: Plants vs. Zombies (for iPhone / iPod touch)