Apple's passionate pitchman

SAN FRANCISCO, CA - JUNE 06: Apple CEO Steve Jobs delivers the keynote address at the 2011 Apple World Wide Developers Conference at the Moscone Center on June 6, 2011 in San Francisco, California. Apple CEO Steve Jobs returned from sick leave to introduce Apple's new iCloud storage system and the next versions of Apple's iOS and Mac OSX. (Photo by Justin Sullivan/Getty Images)

    Just Watched

    Apple's passionate pitchman

Steve Jobs' enthusiasm and sense of humor were on full display at the launch of some of Apple's greatest hits.