The next major version of OS X took center stage at an Apple press event Wednesday, but it wasn?t the only Mac-centric news to come out of Cupertino. In addition to previewing Mac OS X 10.7?which Apple calls ?Lion??the company also released an updated version of iLife, rolled out a desktop version of its FaceTime video-conferencing application, and revamped its MacBook Air lineup. Apple CEO Steve Jobs called Mac OS X Lion the ?entrée? of Wednesday?s press event, though the company didn?t offer extensive information about its next major OS X update. Lion is slated to arrive in summer 2011.