Introduced during the Apple Worldwide Developers Conference Keynote Address 2010, the iPhone 4 was announced by Steve Jobs to large fanfare.  iPhone 4 is the 4th generation Internet and multimedia-enabled smartphone from Apple, releasing at the end of June. Many are wondering how it compares to the current iPhone 3GS model.  Thanks to the infographic created by Mahalo, a visual comparison lays everything out on the table.  Check it out. Who’s buying one??