Apple likes to schedule its events in secret. The last few WWDCs were marked in Mosone's corporate calendars as generic "Corporate Events". The same with Apple's events at the adjacent Yerba Buena Center for the Arts. Luckily, not too many huge conventions are scheduled in secret, so it makes finding Apple's events a little easier.
We, like many other sites, saw the saw the late June, early July corporate event as being a likely time place for WWDC. But, with a recent change to the calendar (and the removal of Sun's JavaOne conference - wow!) it looks like WWDC might have changed datesor even *gasp* changed venues.
