MobileMe will no longer cost you $99. Actually, as of today, MobileMe will cease to exist at all. MobileMe It's being replaced by iCloud, which will consist of a collection of apps.
iCloud will let you wirelessly sync all data to the cloud, as well as perform automatic daily backups from your device. This is going to come in very handy when getting a new iOS device.
Are you excited about wireless backups and MobileMe being put to death, and iCould going free? Let us know.