Available as a download for some time, Apple tonight made available iPod Software Updater 1.1 through the Software Update control panel in Mac OS X.
According to Apple, iPod Software Updater 1.1 adds audio playback and user interface improvements, equalization presets, shuffle by album, track scrubbing, Contacts and additional languages: Korean, Simplified Chinese and Traditional Chinese.
The iPod Software Updater will run the next time you plug in your iPod, if it needs updating. If you wish to run it manually the updater will be located in your Utilities folder.