Flash Builder for iOS projects

How does Flash Builder work for iOS projects? Does it give me a generated xcode project file? Or do I have to submit the flash builder project to the App Store? Also, is it worth the hype (cross platform) or 开发者_运维百科are the apps buggy and laggy?

Thanks

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From what I read, it uses LLVM to create binaries/app-bundles you can upload directly. Never seen an app, so can't answer about what it looks like.