updated 05:50 pm EST, Sun December 20, 2009
Moscone dates have WWDC in late June
Apple's 2010 edition of the Worldwide Developers Conference (WWDC) should take place in late June, according to the Moscone Center's schedule for the summer. A "Corporate Event" has shown up at the conference hall's schedule for between June 28th and July 2nd, corresponding roughly to Apple's preferred timeframe. Apple has been known in the past to use the seemingly anonymous name to hide its plans until it's ready to make its WWDC dates official.
All other dates within a month in either direction have specific company or event names attached.
The timing of the event is potentially significant. It would have the keynote on the 28th or 29th, almost exactly three years after the iPhone was first released. While the possibility remains that the timing is dictated by others, it may fuel speculation that Apple is waiting until its exclusivity deal with AT&T ends before unveiling a Verizon iPhone or deals with any other carriers.