Apple this morning released three updates for iPod users, and one for iTunes.

The iTunes 2.0.4 update introduces expanded AppleScript support as well as improved stability and performance.

iTunes is Apple’s free digital music application that lets users create personal music libraries on their Macs. iTunes 2 already offers automatic synchronization with iPod, a built-in ten-band graphic equalizer with 22 EQ presets, MP3 CD-burning, cross-fading, and more.

Two versions of the 2.0.4 update are available – the Mac OS X update is available here, and the Mac OS 9 update is downloadable here.

The iPod updates add more features to the product. They are: iPod Software 1.1, Address Book to iPod, and Entourage to iPod.

The Address Book and Entourage updates are both AppleScripts developed using AppleScript Studio, which ships on the Developers Tools CD that ships with every Mac sold. They have been developed to work with OS X only.

iPod updates: EQ and contacts iPod Software 1.1 adds a Contacts menu to store an address book on iPod, and a new Equalizer function supporting over 20 presets with independent settings for each song. It lets users download address and contact details from Entourage, Palm Desktop, and OS X’s Address Book.

Address Book to iPod is a 74K AppleScript that imports contact data to an iPod from the OS X Address Book. It offers users the ability to sort contacts by last name or first name.

Entourage to iPod is a 60K AppleScript that imports contact data from Microsoft Entourage to the iPod. This also offers the ability to sort contact names by first or last name.

Fully editable project files for the latter two updates are available for download from Apple’s AppleScript Studio Web site. Other example AppleScript projects available from this page include an Image Edit script, some Movie Template projects, and an iPhoto Tour.