Since the iPhone 4S features the same A5 processor as the iPad 2, owners of Apple's current-gen tablet have wondered if it's possible that Siri, Apple's new voice assistant, might be offered on the iPad 2. While my colleague Erica Sadun's answer to that is "Don't hold your breath," I only agree with her up to a point: I don't think there are any technical hurdles whatsoever to running Siri on an iPad 2, and the fact that the device doesn't currently feature voice co
