Apple's A5X chip might still be joined by a full-fledged A6, based on an investigation of code. A deep dig by 9to5 into the iOS 5.1 beta code has shown both a more modest upgrade, the S5L8945X (possibly A5X), as well as a previously undiscovered S5L8950X. With the existing A5 known as the S5L8940X, it hints that Apple has been working on two chips at once for the first time.
