Electricpig.co.uk reports that Apple's UK iPhone PR team is approaching journalists from major publications to fly out to the event in San Francisco next month. Apple's WWDC is kicking off on June 6th which typically opens with a keynote address. Apple has yet to officially announce the keynote, but it's certain to happen.
Now, Electricpig claims the "obvious" conclusion is that Apple will be announcing some new iPhone, though we think that's far from obvious. Apple has already said they will be highlighting the future iOS and Mac OS X during WWDC, so we expect iOS 5 to take center stage.