Atari has announced a new entry in the RollerCoaster Tycoon franchise. This time it’s a mobile game for iOS devices and it’s called RollerCoaster Tycoon 4 Mobile. The game will feature 20 pre-designed coasters, new attractions, and new features. Atari also announced that RollerCoaster Tycoon 4 Mobile will feature Facebook & Game Center integration allowing players to visit each other’s parks and exchange coaster designs. The current release date is listed as Spring, so it could be anytime between Thursday & June 20th. Atari has priced the game at $2.99 and it will be available on the App Store. Players can pre-register on the official website at RollerCoasterTycoon.com to get updates and free in-game gifts.