Just got my new iPhone 4 from the Fed Ex driver. Very nice. Three cameras on this model. Front facing, rear facing, and video camera. New glass composition and resolution for detail beyond human vision. All photos are clear and crisp. Apps can now be made into files so that all music, news, games, etc can be grouped into a convenient group which eliminates a lot of swiping. My 3G was two years old plus and ready for retirement.
My Father WAS a Rocket Scientist!