Equalizer now works through the speaker ? The graphic equalizer found under Settings > Audio on non-Cyan devices is limited to just headphone usage. Nokia has finally expanded this to the phone's speaker too, letting users have fine-grained control over music. Update: the EQ does not work through Bluetooth devices.
Dolby Headphone is now Dolby Virtual Surround ? Also under Audio is Dolby Virtual Surround which is explained as "Surround sound enhancement for headphones enabled only for 5.1 audio". Functionally, the two may be the same, but it does add some new features like?
Dolby dialog enhancer ? "Improves the dialog clarity for movies," which is pretty self-explanatory
Brightness Profile ? Users can set the default average brightness for their phone. Unlike the Lumia 630, which has controls for all three levels (low, medium and high), the Lumia 930 has a single slider. My guess is this sets the median, default brightness
Color Profile ? With Lumia Cyan there are now three presets (Standard, Vivid and Cool) in addition to Advanced, which lets the user modify three settings, including color temperature, tint, and color saturation via sliders
Living Images ? Also announced earlier, Nokia's Living Images briefly records a second or two before the photo gets taken. When viewing the image through Nokia Camera or StoryTeller, users can see the image animated, giving life to the memory
USB Settings ? Currently hidden on devices with Preview for Developers, the USB settings are finally enabled with Lumia Cyan, bringing two options for users including "Ask me before using USB data connection" and "Notify me when I connect to a slower charger."
Miracast support ? Found under Settings > Project my screen, certain Lumias are getting full support to wirelessly stream content, or mirror the phone's display on Miracast devices such as PCs and TVs. You can watch my demonstration of this on the Lumia 630
New Camera algorithms ? For the Lumia Icon, Lumia 1520 and Lumia 930, its 20 MP PureView camera is improved. Changes include "much better low-light performance," "better colors," continuous auto-focus, better video quality and improved RAW quality. Continous autofocus works by autofocusing the image when the camera launches (and assuming the user does not use tap to focus). If the user steps back or forward, the camera continually adjusts without the need to manual refocus saving time and removing one extra step.