I was trying to say that if you use optimal(native) resolution then you need really powerful processor and i'm not sure if it can run same games as on iphone with same fps and higher resolution. We have already picky users commenting here that angry birds, hoops and also other games do not look as fluid as on iphone. For me they look good enough but I can see why they say so. So using little lower textures inside game would not hurt. As i said people would not notice if high paced game is using lower resolutions. Pixel density is just so high.