Apple has gone a long way from January 9, 2007 when the first iPhone was officially announced. During the years, the Cupertino-based company introduced updated versions of its smartphone and at the time I’m writing this, the iPhone 4 is still selling pretty darn well. Not in huge volumes, but the reason is that the next iPhone should be unveiled in less than a month. And while we still don’t have the official specs sheet of the iPhone 5, that doesn’t stop us from speculating, using all of the leaked data gathered so far. As a result, we decided to show you the road Apple has taken to change the mobile industry (and make its shareholders super happy).
Only four iPhone models have been unveiled thus far, each of which was a smashing hit for the company. We’ve no doubts the iPhone 5 will repeat the success even though it faces some tough competition
Source: http://www.intomobile.com/2011/08/22/inforgraphics-iphone-evolution/
And damn dual-core on a phone is going to be epic!