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One of the biggest puzzlers surrounding the release of iOS 5 is the iPhone 4S’s exclusive ability to use Siri, the voice-controlled virtual assistant.

At first we had assumed that Siri requires special hardware — the A5 processor and oodles of RAM, perhaps — but it turns out that the

If you ever needed proof that Apple is all about the big-buck bottom line, just look at

The latest iOS rumor suggests that the major iOS update will only run on the iPhone 4 and beyond. Sorry iPhone 3G and 3GS owners, but you may be out of luck.

Geekaphone just completed a study looking at the eco-impacts of the iPhone. Sure, Apple has their consumer-facing sustainability reports for most of their products, including the iPhone 4 and iPhone 3GS.

But it's always good to hear another party weighing in. And considering Apple has sold over 100 million iPhones, that measurement is very important.

Fortunately for us, Geekaphone not only completed a report, but wrapped it up into a handy infographic. We do love infographics.

Check it out after the jump.