iChat (or iChat AV) is an instant messaging software application developed by Apple Inc. for use on its Mac OS X operating system. It supports instant text messaging over either iMessage, XMPP/Jingle or OSCAR (AIM) protocol; it also features audio, video and screen-sharing capabilities. It also allows for local network discussion with users discovered through Bonjour protocols.

As of February 16, 2012, iChat has been discontinued, to be replaced in future versions of Mac OS X by Messages. Users can currently choose to download Messages on Apple's website as of February 16, 2012, the same day Apple introduced a preview to OS X Mountain Lion.

iChat incorporates Apple's Aqua interface and uses speech bubbles and pictures to personify the online chatting experience. With iChat, green (available), yellow (idle), and red (away) icons can be displayed next to the name of each connected user on the buddy list. For color-blind users, this can be altered to show different shapes to illustrate status rather than color.

Steven Paul "Steve" Jobs (/ˈdʒɒbz/; February 24, 1955 – October 5, 2011) was an American businessman, designer and inventor. He is best known as the co-founder, chairman, and chief executive officer of Apple Inc. Through Apple, he was widely recognized as a charismatic pioneer of the personal computer revolution and for his influential career in the computer and consumer electronics fields. Jobs also co-founded and served as chief executive of Pixar Animation Studios; he became a member of the board of directors of The Walt Disney Company in 2006, when Disney acquired Pixar.

In the late 1970s, Apple co-founder Steve Wozniak engineered one of the first commercially successful lines of personal computers, the Apple II series. Jobs was among the first to see the commercial potential of Xerox PARC's mouse-driven graphical user interface, which led to the creation of the Apple Lisa and, one year later, the Macintosh. During this period he also led efforts that would begin the desktop publishing revolution, notably through the introduction of the LaserWriter and the associated PageMaker software.

Philip W. Schiller is the senior vice president of worldwide marketing at Apple Inc. He is a prominent figure in Apple's public presentations. He aids Apple CEO Tim Cook and has been a member of the company's executive leadership team since Steve Jobs returned to Apple in 1997.

Schiller received a Bachelor of Science degree in Biology from Boston College in 1982. He began, but didn't complete, a Ph.D in English.

Schiller has over twenty four years of experience in product marketing and management, including seventeen years at Apple in various capacities. His previous experience also included positions at Macromedia (Vice President of Product Marketing), FirePower Systems, Inc. (Director of Product Marketing), Nolan, Norton & Company and Massachusetts General Hospital (Programmer and Systems Analyst).

At Apple, Schiller was instrumental in the formation and marketing of iMac, iBook, PowerBook G4, iPod, Mac OS X, and subsequent products.

Schiller frequently participated in a supporting role in keynote presentations given by Steve Jobs, usually presenting new products, like the iPhone and the iPad. During Steve Jobs's medical leave of absence, he presented numerous keynote presentations himself (with supporting segments by other Apple staff), including Apple's last appearance at IDG's Macworld trade show on January 6, 2009 and the WWDC keynote on June 8, 2009. Both presentations, held in San Francisco, were typically presented by Jobs himself. Among the things announced at these events were the updated MacBook Pro lines, the new iPhone 3GS, new versions of the iLife and iWork suites as well as pricing and DRM changes to the iTunes Music Store.