MobileMe Control Panel is required to set up and manage MobileMe syncing and manage iDisk settings on a Windows PC.
This update enables you to choose which MobileMe calendar syncs with the default Outlook calendar, provides compatibility with Windows 7, and improves the reliability of bookmark syncing. This update is recommended for all Windows PCs that sync with MobileMe.
MobileMe is the online service from Apple that automatically keeps your email, contacts, calendar, bookmarks, and more in sync across multiple computers, your iPhone, iPod touch, and a suite of web apps on www.me.com.
Note that MobileMe for Windows won't install unless you have iTunes 9.x installed first.