Siri is currently an iPhone 4S-only feature, but a tenacious developer has already ported it to the iPhone 4. Is it proof that Siri is a tool to make more iPhone 4 owners go for the "S" upgrade, or does the voice command software really need that extra power?
Apple's original excuse for the non-appearance of Siri on the iPhone 4 was that the voice recognition app needed the extra processing grunt supplied by the iPhone 4S's dual-core A5 processor. But it appears this may not be true. Developer Steven Troughton-Smith has managed to install the Siri software onto a hacked iPhone 4 and get it running - albeit slowly and without access to the Apple-side servers that are necessary for the full Siri experience.
We expect the lethargic performance would be eradicated in an official port. It's also worth noting that some of Siri's current functionality was also available within the Siri Assistant app, which was pulled from the App Store on 5 October.
Siri comedy courtesy of a site whose name we won't repeat in full...
If the iPhone 4 and iPad 2 are almost certainly capable of getting into bed with Siri, why is it only iPhone 4S owners who get to experience its delights? There are a number of obvious explanations. The cynic will suggest it's to further differentiate the new iPhone from its predecessor, and encourage more purchases.
A more charitable mind will point to Siri's data consumption, though. Apple's servers have to do most of the work when calculating what you're trying to say to Siri, and suddenly opening this up to millions of iPhone and iPad users could cause a heinous server meltdown that would do no favours for Apple's otherwise top-notch reputation for offering a great user experience.
We expect to hear news of Siri's transition to iPad 2, if not other iOS devices, soon. Stay tuned for the latest details. Or perhaps we could just ask Siri...