The audience greeted Jobs with a standing ovation. He took the stage looking better than he had at a similar event a year ago, when his gaunt appearance added to speculation that he might have had a reoccurrence of the pancreatic cancer he battled five years ago.

The focus of the event was on the company’s iPod line. Jobs showcased a new iPod Nano that comes with a built-in video camera as well as an FM radio tuner and pedometer.

The company also trimmed the price on its popular iPod Touch, cutting the price of the 8GB model to $199. The Touch features a touch-screen similar to the company’s popular iPhone, and allows users to surf the Web and download games and apps over a WiFi connection.

For the larger iPod Touch sizes, Apple effectively doubled the memory of the $299 model to 32GB, and the $399 model now comes with 64 GB.

Apple’s product marketing director, Phil Schiller, said the company has sold more than 20 million units of the iPod Touch to date. He cited NPD data that said the iPod was the No. 1 digital music player in the U.S. in July, with almost 74% of the market

Earlier in the event, Jobs highlighted the company’s iPhone and iPod business lines. He announced a new software update for the iPhone, which has sold more than 30 million units to date. The software update is called 3.1 that is available now.

In addition to the new iPod Nano, the company launched an updated version of its iTunes software called iTunes 9, which includes new features that allow for easier managing of applications on the iPhone or the iPod touch and easier sharing of content between computers at home.

The new Home Sharing feature allows up to five computers to share and copy music, TV shows, movies and applications.

Apple has also redesigned the iTunes store with a cleaner look and organization, and a new iTunes LP feature that gives a buyer access to lyrics, liner notes, videos, album artwork and other material with the purchase of an entire album

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