As usual, there are several editions to chose from. In the case of Office for Mac 2011, there are three. First, Microsoft Office for Mac Home and Student 2011 will retail for $119 and offer Word, Powerpoint, Excel and Messenger.
On the next tier is Microsoft Office for Mac Home and Business 2011. For $199 (or $279 for two installs under the same user), Home and Business edition adds Outlook to the mix (you can watch a preview of Outlook '11 here).
Finally, the economic Microsoft for Mac 2011 Academic includes Word, Powerpoint, Excel, Outlook and Messenger for $99. It's a single-install edition that will sell at authorized academic stores as well as directly from Microsoft.
For more on Microsoft Office 2011 for Mac, watch this space, as the team will be updating it regularly.
[Via The Loop]