Is developing iPhone apps in any language other than Objective-C ever a truly viable solution?

I hear all this stuff about crazy ways to build iPhone apps using Ruby or C# under .NET or the like. Even stuff about developing apps on Windows using Java, or auto-generated apps using Flash CS5 or somethin开发者_如何学运维g.

Now, I've never really spent any time at all investigating these claims—I just brushed them off as clumsy or cumbersome or downright claptrap—but I'm a proud Objective-C programmer who's perhaps a little worried as to whether there's any truth in all of this?

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As of the newest iPhone OS license agreement by Apple, all apps for the iPad, iPhone, iPod must be either built with XCode/ObjectiveC directly, or be built using HTML/CS/JS (With libraries like PhoneGap if desired). The Flash CS5 to iPhone cross compiler has been pretty much expressly forbidden. You can read about it from Steve Jobs.

I guess the only time those tools would be viable is in a corporate environment, where you were installing the apps directly on the phones.

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I imagine that if this is possible it will soon be stamped out by Apple. They are very aggressive with their licensing terms.

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As far as I'm aware, Apple is actively blocking apps developed with tools like you mention from appearing in the App store. That makes whether it is possible pretty much irrelevant.