The iPhone 5 release date is probably written in stone by now, as Apple has scheduled its annual WWDC.

CES 2011 had barely come to an end when a massive amount of iPhone 5 rumors appeared last month. While the exact iPhone 5 release date has yet to leak out, it looks like Apple has scheduled a "Corporate Meeting" for June 5 through 9 at the Moscone Center in San Francisco. AppleInsider believes that the corporate meeting is Apple's annual Worldwide Developer Conference, but points out that one can never be too sure when it comes to Apple.

Apple unveiled the iPhone 4 on the opening day of WWDC 2010 though, which was held June 7 through 11. On January 31 last year, Steve Jobs described the iPhone 4 as an A+ update, followed by a prototype of the device being found in a bar on March 18. A leak on April 9 suggested that it would offer FaceTime and LED flash. The screen technology, processor and RAM were leaked on May 17. And then finally, Steve Jobs went on stage in Moscone Center to unveil it on June 7. Apple could potentially launch the iPhone 5 on June 5 this year.

The hottest iPhone 5 rumors to date have been related to the chipset, form factor, connectivity options as well as what iOS 5 will offer. We guess it's safe to assume that a prototype of the device will not be lost in a bar. However, while Steve Jobs described the iPhone 4 as an A+ upgrade last year, he has yet to give any description of the iPhone 5. Given the fact that he's currently on a medical leave, though keeping an eye on the decision-making, the only thing we know for certain is that he has promised exciting things for 2011.

So, what is Steve Jobs' definition of exciting things? Well, Flash and traditional input methods can be ruled out, that's for sure. In other words, you'll not see Apple release a QWERTY phone with Flash 10.1 support for mobile professionals in June. If Apple's COO Tim Cook dropped a hint about what the iPhone5 will offer during a recent earnings call, however, it means we should expect a device that goes far in catering to the masses. Will the iPhone 5 simply aim to redefine the mass-market device as part of an iCoin effort? Only time will tell.