No icloud, just mobile me

iCloud requires OS X Lion (10.7.5) or higher. You will need to upgrade to OS X Lion higher in order to set up iCloud on your Mac. First check to see if your system meets the system requirements to upgrade.

Lion system requirements are:

• Mac computer with an Intel Core 2 Duo, Core i3, Core i5, Core i7, or Xeon processor
• 2GB of memory
• OS X v10.6.6 or later (v10.6.8 recommended)
• 7GB of available space

Mountain Lion and Mavericks requirements are the same, as listed here: http://support.apple.com/kb/HT5842.

If you can run Mavericks, you can download a free upgrade from the Mac App Store. If your system can only run Lion, you can go here to purchase a redemption code to download it from the Mac App Store. If you prefer Mountain Lion for software compatibility reasons, you can go here to purchase a redemption code to download it from the Mac App Store.

After upgrading, you will find iCloud in System Preferences>iCloud on your Mac, and can set it up as explained here: http://www.apple.com/icloud/setup/mac.html.

Before upgrading, you may want to check the compatibility of your existing applications by checking here: http://roaringapps.com/apps:table. Also be aware that older PPC programs such as AppleWorks and Office 2004 for Mac will not run on OS X Lion or higher.

You're welcome. But just so you are aware, if you are using Office for Mac 2011, it will not sync contacts and calendars with iCloud. (Microsoft choose not to support the CardDAV and CalDAV protocals that are necessary; see http://support.microsoft.com/kb/2648915). You will have to use built-in Mac Contacts and Calendar apps in order to sync contacts and calendars with iCloud.