The 14th annual Worldwide Developers Conference was originally scheduled for May 19 to 23 at the San Jose Convention Center, but was rescheduled to June 23 to 27 and held for the first time at the Moscone Center's West Hall in San Francisco, California. Early bird registration was extended from April 18 to May 23, 2003. The change was made to ensure Apple's development team to had enough time to have a preview release of Mac OS X 10.3 "Panther" ready for attendees.
Approximately 3,000 developers attended. Attendees received Apple's first model of the iSight web camera (to coincide with the launch of iChat AV), pre-releases of Mac OS X 10.3 and Mac OS X 10.3 Server, the O'Reilly book Cocoa in a Nutshell, and a 17-inch notebook carry bag. Apple also screened the Pixar film Finding Nemo for attendees, ahead of its premiere in cinemas.
- Apple’s Worldwide Developers Conference Moved to June 23-27 at Moscone in San Francisco, Apple Computer. 2003-03-21.
- "WWDC over the years: How it became a tech juggernaut | Cult of Mac", Cult of Mac, 2017-06-01. (in en-US)
- WWDC 2003 at Apple Developer Connection (archived 2003-04-01, 2003-08-10)
- WWDC 2003: The QuickTime Track (archived 2003-06-04)
- A Brief History of Apple’s WWDC Keynotes, 1997-Present p.2 by Harry McCracken at Time (2012-06-11)
- Apple Worldwide Developers Conference: 2000s at Wikipedia