Yes guys the next Generation iPhone (5,1) and iPad Referenced in iOS 5 beta version, which code name spilled by 9to5mac. The iOS 5.0 beta version seems to be a treasure of products ids with the expanding of the iPad 2,4.
"We’ve already spilled out an iPad 2,4 and the next-generation Apple TV code name tonight, and now we have, perhaps, the most important find of all: iPhone 5,1. That’s right, the next version of the iPhone is has been dubbed 5,1 internally. A new 4,x model would represent minor external changes, but nothing new on the inside in terms of processing power. For example, the iPhone 3G went from the original iPhone’s 1,1 to 1,2 because there were no internal speed and performance enhancements, just 3G and a GPS."
The iOS 5.1 Beta version update only fixes few issues except Battery issue for iPhone 4S, iPhone 4, iPhone 3GS, iPad 1,2 and iPod Touch 4G/3G. That means next generation of iPhone has been dubbed 5,1 internally.
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