If everything is rendered 3x, does that mean web pages now need 3x assets to look good? So that 0.01% of the internet that was optimized for Retina now becomes 0.000000000000001% for the iPhone 6+? But conversely, with 3x rendering, does that mean 3D graphics are essentially "antialiased" out of the box, thus winning a couple of points on that account? And finally, if you're viewing a fullscreen video 1920x1080 video, is it first churned through the system's display server, essentially "losing" information? Can games with 100% custom drawn assets decide to render purely at 1920x1080 so they won't waste energy on 3x (as 1242x2208 is about 25% more pixels)? So many questions, so little answers, and so long delivery time!