Warner Bros. has Man of Steel (iTunes Link) for the iPhone and iPod Touch and Man of Steel HD (iTunes Link) for the iPad in the iTunes App Store for 99-cents (regularly $2.99/$4.99) for a limited time.

General Zod has begun the invasion of Earth and only the Man of Steel can stop him. Utilize the powers of Superman to fight your way to victory and save the planet from certain destruction. Requires iOS 5 and later