Apple today released MobileMe Control Panel 1.1 (for Windows).
With MobileMe, your contacts, calendar, and bookmarks are automatically kept in sync between your PC, iPhone, iPod touch, and a suite of web apps at www.me.com.
The MobileMe Control Panel is required to set up sync on your Windows PC. It also enables you to manage your MobileMe iDisk for online file storage and sharing.
MobileMe Control Panel 1.1 (for Windows) is available as a standalone installer.
More info and download link (1.6MB) here.