Re 1: The iPad has 786432 pixels vs the iPod 4G's 614400. Not that big a difference, particularly as that mainly affects the framebuffer. If each pixel in the b

Re 1: The iPad has 786432 pixels vs the iPod 4G's 614400. Not that big a difference, particularly as that mainly affects the framebuffer. If each pixel in the back, front and Z buffers uses 32 bits, that's a whopping 2MB RAM difference, or less than 1% of the total. So, no technical reason, end of story. Re 2: The android makers don't seem to brag about being environmentally friendly. Apple can be held to higher standards as they're making that a supposed selling point. Re 3: I guess it depends on the apps you're making. For autorotation and dynamically-sized content in particular it's extremely useful and saves quite a bit of manual work.