I have read a lot of posts saying that the next iPhone could have a larger screen (4 inches etc.) but with some ridiculous resolutions such as 1920x1280 (quadruple current screen). This would obviously make it the dpi unnecessarily high and probably very expensive. An elegant way around this, which I have only seen one person post this, is to make the screen size 4" and the resolution 1024x768. The resolution is the same as the first 2 iPads and therefore all the apps should be supported. This would also keep the dpi to the 320 mark retaining the "retina" specification. That means apps would be designed for 1024x768 for the iPhone and could quadruple to 2048x1536 for the iPad. Obviously I don't enough about this so there might be some glaring errors. Thoughts?