As reported on AllThingsD, Apple will unveil the next generation iPhone on October 4. The site has cautioned that Apple could change their plans of the launch but new Apple chief executive Tim Cook will preside the launch.

Tim Cook replaced former Apple CEO and visionary Steve Jobs last month over health issues. Jobs underwent operation for pancreatic cancer in 2004 and had a liver transplant in 2009.

Back to iPhone 5, it has been reported by AllThingsD that it will go on sale weeks after it's announcement.

iPhone 4 which was released in June 2010, sold 20.34 million units last quarter.