Hmmm… All but a handful of screens (old “paper white” document display screens, some modern LCDs that people have rotated to portrait) use a wide aspect ratio rather than a tall one. At a minimum this means that I’m getting either a smaller image or else an image that loses resolution in the reorientation from native.
I’m surprised that the cellphone manufacturers haven’t started making camera software that can grab landscape-oriented video using a portion of the portait-oriented CCD pickup. If the camera’s narrowest resolution is greater than widest resolution of a video format, they should be able to capture the relevant image area off of only a portion of that CCD to make a landscape image. 1920 width is still narrower than the the narrowest dimension in my cellphone camera.
