If you’ve already transitioned from .Mac to MobileMe, please be aware that Apple has distributed a Mac OS X Update for MobileMe 1.1. It’s available for installation through the Software Update system preference.
“The Mac OS X Update For MobileMe is recommended for users running Mac OS X Leopard 10.5.4 and includes general system fixes that enhance your Mac for MobileMe,” reads the accompanying information.
Apple offered no further details about what was fixed or changed in this release.
MobileMe replaces .Mac as Apple’s subscription-based service. The software enables you to synchronize data on multiple devices including Macs, iPhones and PCs, and sports e-mail, contact and calendar management, photo and Web page publishing and other capabilities.