Appearance by Jobs highlights iPad 2 unveiling

Apple CEO Steve Jobs took to the stage at Apple's iPad 2 rollout Wednesday in San Francisco, reassuring investors concerned about the loss of his leadership and vision at the technology giant.

Jobs, who is on medical leave for serious health problems, unveiled the new edition of the popular tablet, which will now come in both black and white. The new iPad is thinner, lighter and rounder than its predecessor. It features front- and back-facing cameras and is available with wireless plans on both AT&T and Verizon; it starts at $499.

Jobs mocked tablet offerings from Apple's competitors; at one point the presentation screen displayed a list of Apple's accomplishments including "competitors flummoxed." He dubbed 2010 "The Year of the iPad" and said Apple is "way ahead" of competitors, having shipped 15 millions iPads with over 65,000 apps available.

"This is worth repeating. It's in Apple's DNA that technology is not enough. It's tech married with the liberal arts and the humanities. Nowhere is that more true than in the post-PC products," Jobs said, referring to the iPad, iPhone and iPod.

"Our competitors are looking at this like it's the next PC market. That is not the right approach to this. These are post-PC devices that need to be easier to use than a PC, more intuitive," he added.

"The hardware and software need to intertwine more than they do on a PC. We think we're on the right path with this."

Apple also announced an update to its mobile operating system, two new music and film editing applications for the iPad and a new HDMI cable that lets users connect their iPads directly to TVs.