In announcing the new iPhone 5, Apple has confirmed that they are extending their recent color strategy. This strategy is to bring all of their devices, not just to Retina resolution, but to sRGB color standards. For the iPhone 5, as for the new iPad, this is a significant increase in color gamut. For the MacBook Pro, it was actually a reduction of gamut from the most recent previous MacBook Pro. But the value of this isn’t just increased color gamut size; its consistency between devices, and consistency between these devices and the web standard of sRGB. This simplifies color management for most users, by creating close to a one-to-one relationship between the image color space, and the device color space.
With the release of the new iPad, and the Retina MacBook Pro, Apple did not use the term “sRGB” when describing their color. But at the iPhone 5 event, they chose to actually use the term sRGB. So its now an official standard, not just an observation by outside experts like myself: Apple is moving its devices to an sRGB standard. There will be complaints that this is not large enough, that AdobeRGB is the ideal color gamut for displays, which may be true for some advanced photographic uses; but for most users, and especially for mobile devices accessing the web, sRGB is the best choice. Custom calibration can still offer improvement on these devices, but their general color representation is quite good for sRGB files, given their sRGB device space.