Think of it. Two LEDs. And two different colors. There will be a "regular LED" which is, you know, just regular. And one "with a slight blue tint." And why you ask? "The idea behind this is to improve white balance when snapping photos," Peter assures us, authoritatively.
Wow! Or more precisely, "Wow, again!"
Dual LEDs for what became the iPhone 5 were widely rumored throughout 2011. Hence the "wait" part of RR17. But these LEDs will be differently colored, hence the "tweak" of RR17. All that's left is to ignore Google's search history and recycle.
"We're not quite sure how this is supposed to work - use both LEDs at the same time to produce a brighter, slightly blue illumination, or light them up one at a time to get two different illuminations in an HDR-type strategy (instead of combining two exposures to get better dynamic range, combine two photos with different color to get better color accuracy)," Peter confesses.
It's a puzzle. That's often the case with rumors, especially those falling under RR17.
Some smartphones today use two LEDs for their camera flash. According to a 2011 forum posting at StackExchange's Photography community, "a dual LED flash can emit twice as much light as a single LED, which means you can [light] subjects 1.4 times further away. It also draws twice as much power."
One forum member linked to a 2008 post by Steve Litchfield at AllAboutSymbian.com, comparing LED, dual-LED, and Xenon flashes in camera phones. He posted three photos of the same interior scene (a drumset) shot using the three different flash techniques. The dual-LED is indeed much brighter, with fewer and less intense dark areas. The Xenon flash is brighter still but also yields much more true-to-life colors compared to dual-LED.
Peter doesn't weigh down his blog post with things like details.
"It's an odd rumor as we said - it's unlikely, but why would someone make it up?" Peter asks, presumably rhetorically.
Why indeed? Why make something up and then contact a tech blog and convince them that it's real or being considered or in a prototype?
"Thanks to our anonymous tipster!" Peter concludes his post.
Oh. Maybe...that's why.
John Cox covers wireless networking and mobile computing for Network World.