As the iPad launch looms tomorrow, four new games have been launched for the new Apple platform. PopCap has launched its popular iPhone and Mac zombie fighting game, Plants vs. Zombies HD for iPad. The game pits the user against hordes of zombies using a variety of plants to fend them off. The iPad version adds larger graphics taking advantage of the iPad's display; it also gets exclusive achievements, 18 mini-games and the survival mode. The new iPad version is $10 and available now on the App Store.