Firemint has announced plans to release a major update to Real Racing 2 and Real Racing 2 HD in conjunction with the launch of iOS 5 and the iPhone 4S. The new version will deliver full 720p AirPlay support for playing on the Apple TV from an iPad 2 or iPhone 4S and promises to improve the graphics and performance by utilizing the power of the new A5 processor in the iPhone 4S. Visual upgrades will include real-time dynamic shadows and specular lighting…