It is thought that Apple could launch iOS 8 along with OS X10 so that developers can see what is new in the OS. They will then be able to update apps that already exist along with make new ones.
When Apple launch a brand new iOS they usually do it alongside a new phone, which in this case would be in this case would be the iPhone 6. The iPhone 6 could arrive on day two of the WWDC.
Of course there are rumours going around that Apple could release two different versions of the iPhone this year. It is thought that one would have the display of 4.7 inches and the other may have a display of 5.5 inches. This would be the first time that Apple launched a device with a large display.
