Xplain Custom Services today announced the return of its “WWDC Exhibit Fair” to Apple’s Worldwide Developers Conference, May 19-23, at the San Jose Convention Center. The Exhibit Fair will give vendors the opportunity to showcase their latest technical products to the thousands of Mac OS X developers who attend this annual event. In 2003, the WWDC Exhibit Fair has expanded to include products and services for Enterprise IT organizations as well as QuickTime content creators.