The display is said to be a 720p HD â€œmonster-sizedâ€ screen, and it wonâ€™t feature physical Android menu buttons below the screen anymore â€” everything will be software-based.
The elimination of those four buttons might be the key to integrating a “monster-sized” display. My guess: a 4.5- to 4.7-inch LCD with a 1280×720 pixel format. At 4.5 inches the resolution is 326 ppi and at 4.7 inches the resolution drops to 312 ppi. If I were to choose between the two it would be a 4.5-inch, which would sport the exact ppi as the 3.5-inch Retina Display in the iPhone 4.
Videos captured in 720p HD will be perfectly displayed pixel-for-pixel. If this turns out to be true, then the Google Nexus 4G will be the only modern display where you can enjoy 720p HD video absolutely unscaled, and without wasting a single pixel.