With the release of Service Pack 3 previously this month, Office for Mac can now partake in the Office 365 subscription offerings.
The subscriptions service are best suited for customers who use Office on an array of devices as it will allow any combination of Mac/PC installs using 5 re-usable licenses; although, if you do have only the one device there is a lot of value consisting of free version upgrades etc.
Please do note that the minimum requirement for Office 365 subscriptions on Mac is OS X 10.6; while lasting Office for Mac 2011 remains 10.5.8. This difference is due to some of the Office 365 services functionality that are included within the subscription offer.
I am aware some people will be wondering when the next version of Office for Mac will be available now that Office 2013 has launched; unfortunately Microsoft are not ready to make an announcement at this moment in time, but know they are working hard on the future of Office for Mac. The most current version of Office for Mac is 2011.
If you are interested in Office 365 and have any questions please get in touch.