Apple has released version 2.0 of its free WWDC app ahead of its upcoming Worldwide Developers Conference. The app reveals a good portion of the conference’s schedule, including the keynote, which is set for 10 a.m. to 12 p.m. PST, Monday June 2. A number of the events on the conference schedule have still yet to be announced. Maps of the Moscone West venue in San Francisco and videos from past WWDCs are also included within the app. [via 9to5Mac]…