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Can I write an iPhone application in any language other than Objective-C?
I am looking for the easiest way to develop apps for iOS. Is there another language which I can use other than Objective-C to develop apps for iOS (and get it published in the App Store)?
The easiest way is to use Xcode and Objective-C. There are alternatives like MonoTouch, but you’ll get the most help (books, tutorials, StackOverflow) by sticking to Objective-C and Cocoa Touch. Also, the other means merely provide access to the Cocoa Touch and CoreFoundation APIs and thus are naturally always needing to catch up with what Apple provides (plus might introduce bugs on their own). The language Objective-C is easy to learn, just grab any book for beginning to develop on iOS.