Keep in mind, as the year moves along, that Apple's MobileMe service will terminate on June 30th of this year. If you would like to maintain your MobileMe email address, you should plan on moving your account from MobileMe to iCloud before June.
To use the free iCloud service, your Mac must be running the latest version of Apple's Operating System - Mac OS 10.7 Lion. Your iOS devices must be on iOS 5 to use iCloud.
Contact us to plan your upgrade and get it done right without loss of data.