What will it look like?
It’s possible that the iPhone 5 will have a brushed metal backplate, which would help keep it from scratching and make the phone lighter as well.
There have been some recent rumors that the phone could get considerably thinner, even tapering toward the bottom. The square edges could round out, making it look a little more like an iPod touch.
According to the Steve Jobs isn’t a fan of physical buttons. the iPhone 4 only has one, on its front. The iPhone 5 might turn that one physical home button into a virtual, on-screen home button, which would get out of the way while you’re watching videos. This would give it a four-inch screen, half an inch bigger than the iPhone 4’s. But another rumor has the display bumping up to only a 3.7-inch screen, and the home button getting slightly larger.
What performance upgrades will it have?
It’ll have a faster dual-core processor, plus more memory and an improved camera one that might be able to take 8 megapixel still pictures and record 1080p HD video. You’ll be able to play more realistic games, switch between open apps more quickly, and keep more web pages open at once.
you can bet that Apple doesn’t want a repeat of “Antennagate,” and will be paying special attention to the iPhone 5’s antenna to make sure there are fewer connection issues.