Iphone 4G Release Date: iOS 4 in Apple iPhone 4G has A4 Chip in it - Apple plans to ship the units in the U.S. and four countries on the first day but will be available in 88 nations by September.

The iPhone 4 would have a sharper display with 326 pixels per inch quality. He said that 300 pixels per inch constituted the limit of the human retina and so things will start to look like continuous curves at that level. Text will look like a printed book, he said.

The iPhone 4 camera shoots gorgeous 5-megapixel photos and stunning HD video. And with its advanced backside illumination sensor, it captures beautiful images even in low-light settings.

Apple also used the occasion to announce that it's renaming the operating system simply as iOS 4 "because it's on iPad, iPod Touch, and iPhone," Jobs said.

The new operating system, which debuted in April when Apple first announced what was called iPhone OS4, includes the ability to multitask, along with a unified e-mail box and app folders - among the most wanted features mentioned by users.

The units go on sale June 24, though pre-orders will be taken starting on June 15.