If you scoffed at the news that Apple's Siri would only be available on the iPhone 4S, thinking that you could just use the standard Siri app that was still available on the App Store, then scoff no more. The freely available Siri app has been removed from the App Store completely, and as TechCrunch reports, the whole service is being taken down in advance of the official debut of the app as part of iOS 5. TUAW reader Luc reports that the current app now gives a note as it starts up that the ap