Ever since a leaked image showed off dual cameras on HTC's next One (aka the M8), the rumor mill has been trying to figure out what they're for, exactly. Now, an ad leaked to GSM Arena from Australian carrier Telstra appears to have removed all mystery. First off, the phone is referred to as the "All New HTC One (M8)," in the copy, likely to distinguish it from the last model. As for the "Duo Camera," it'll bring improved low-light capabilities and let you select the focus of a shot after it's been taken -- as predicted. You'll also be able to highlight significant areas of a shot, soften the background and add 3D effects. Another big reveal is the 5-inch, full HD, scratch-resistant screen (a step up from the last One's 4.7-inch display), along with dual "BoomSound" speakers. Finally, the latest Sense 6.0 version will let you double tap the screen to turn on the phone and swipe to access apps and social info. The ad looks like the real McCoy, but if you're still capable of any skepticism, all will be revealed in exactly two weeks.