Apple CEO Steve Jobs kicked off Macworld Expo on Tuesday by announcing a smaller iPod music player, new multimedia software and an update to Microsoft's Office package.

The "iPod Mini," which uses a new generation of tiny hard disks, holds 4GB of storage--or about 1,000 songs--in a half-inch-thick case the size of a business card. The device, which will cost $249 and come in a choice of five colors, will be available in the United States in February and worldwide in April.

Read more: CNet News.