Updated with developments from the ongoing Apple event

SAN FRANCISCO (

TheStreet

) -- After a liver transplant and 11 months out of the public eye,

Apple

(AAPL) - Get Report

chief Steve Jobs opened the company's iTunes event Wednesday to loud applause.

Jobs thanked COO Tim Cook, his interim replacement, and marketing chief Phil Schiller for taking over the lead duties in his absence. He also spoke of his liver transplant and the donation of a liver from an auto accident victim, urging others to be generous and donate organs.

"I'm vertical. I'm back at Apple, and I'm loving every minute of it," Jobs said to the attendees in the Yerba Buena Conference Center in San Francisco.

Steve Jobs, Apple's CEO.

Jobs went on to introduce the new iPhone 3.1 operating system, the new iTunes 9 software, a new lineup of iPods include a new nano with a video camera.

Apple says it has sold 30 million iPhones and 20 million iPod Touch devices. During the show, several hosts presented an array of video games including a version of Madden the football title from

Electronic Arts

(ERTS)

.

Apple's touchscreen devices allow users to control the games with pokes and swipes on the display.

Jobs returned to the stage to introduce the new iPods. For Apple's famous "one more thing," Jobs unveiled the widely anticipated nano iPod with a video camera. The new nano comes in two storage sizes an 8 gigabyte for $149 and a 16 gigabyte for $179. The devices also include an FM radio and a pedometer.

The return of Jobs helped push Apple shares to a new 52-week high of $174.47 briefly Wednesday.

Apple shares tend to slide during product showcases according to a look back over the past two years.

--

Written by Scott Moritz in New York.