New quad-core coming
A beta version of iOS 5.1 has surfaced online and inside the beta OS is an updated processor core management software that supports both the dual-core A5 chip the iPhone has already and a quad-core chip. 9to5mac reports that the hint on the chips update comes from some sort of hidden panel that described cores and supported hardware for the OS.
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The indication would be then that one of the devices is getting a new processor. The site says that the software says /cores/core.3 indicating a third processor for the iPad/iPhone line. The other two existing parts are listed with a core.0 and a core.1 listing.
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There is no indication of when that third processor might surface. I also see nothing to indicate that the processor has to be for the iPhone. It could simply be a new processor for the coming iPads we keep hearing rumors about. It would be cool to see a quad core iPhone though.