Apple has released iSync 1.5, an update to the companyis synchronization technology for Macs. iSync 1.5is main feature appears to be additional support for more devices, including the latest phones from Sony Ericsson, Motorola, and Sendo. The release notes from Software Update:

iSync lets you manage your contacts, calendars, To Do lists, and Safari bookmarks across multiple Mac OS X computers and devices (such as an iSync-compatible mobile phone, Palm OS device, or iPod), so you always have your most current information with you. To sync a Palm OS device, you need to install the iSync Palm Conduit version 1.2 or later.

iSync 1.5 adds support for more devices such as the latest Sony Ericsson and Motorola phones. For more information about supported devices and connectivity requirements, visit www.apple.com/isync.

Before you install iSync 1.5, you must install iCal 1.5.2 or later. To download the latest version of iCal, visit www.apple.com/ical, or use Software Update (in System Preferences) to install the latest version.

If you are using Mac OS X version 10.3 and plan to synchronize a Bluetooth mobile phone, you need to have Bluetooth version 1.5 or later installed. To download the latest version, use Software Update (in System Preferences). If you have an earlier version of Mac OS X, visit www.apple.com/isync to download the appropriate Bluetooth version.

Appleis iSync 1.5 download page also lists Sendo phones among the new devices supported. You can download the update through Software Update, and the file weighs in at 6.6 MB. You can also download it from Appleis iSync Web page.

A restart is required for the update.