Microsoft announced today that Office 2011 for Mac would ship in October of this year. The release of Microsoft Office for Mac 2011 will be simultaneous across 100 countries at the end of October. Two versions will be available, Office for Mac Home and Student 2011 and Office for Mac Home and Business 2011.

Starting today, if customers purchase Office 2008 for Mac, they will be able to upgrade to Office 2011 when it is available at no additional cost through the Microsoft Office for Mac Technology Guarantee Program.

The following editions will be available.

Microsoft Office for Mac Home and Student 2011 includes Word for Mac, PowerPoint for Mac, Excel for Mac and Messenger for Mac, and it will retail starting at $119.
Available in two editions — a single install for $119 (U.S. ERP) and a Family Pack for $149 (U.S. ERP) with three installs for families with more than one Mac in their household.
Microsoft Office for Mac Home and Business 2011 includes Word for Mac, PowerPoint for Mac, Excel for Mac, Outlook for Mac and Messenger for Mac, and it will retail starting at $199 (U.S. ERP).
It also will be available in two editions — a single install for $199 (U.S. ERP) and a Multi-Pack for $279 (U.S. ERP) with two installs for a user with two machines.
Microsoft Office for Mac Academic 2011 includes Word for Mac, PowerPoint for Mac, Excel for Mac, Outlook for Mac and Messenger for Mac, and it will retail at authorized academic stores and Microsoft for $99 (U.S. ERP).