iPhone 5 Release Date: iPhone 5 to launch on the 6th of June 2011?

iPhone 5 rumours have been catching great media attention for the last couple of months with all tech sites pointing out different dates.
According to ITPROPORTAL iPhone 5 will be launched on the first day of WWDC ( Worldwide Developer Conference ) which would be on the 6th of June 2011 and a third voice confirming the date is Ezra Gottheil , an Analyst with Technology Business Research who backs this date.

A close look at Apple’s previous launch dates clearly indicates Apple launching their phones during the keynote presentation at its Worldwide Developer Conference for the last 3 years.
iPhone 5 release date has not been confirmed by Apple but hints have been taken seriously by consumers and tech sites.
Leaving all rumours and hints to one side, will the new iPhone have a built in RFID techonology, integrated Sim, 64gb onboard, improved battery life, a Dual Core Processor and the list goes on…..
Want to add anything to the list, feel welcome