Ever wonder how you will collaborate with your friends who use MS Office 2010 (Windows), when you’re using a MacBook Air? Should you get Office 365? Or is there an alternative?
You can get MS Office 2011 for the Mac here:
And for your iPad, use GoodReader to view MS Office files.
If you want to edit MS Office files using your iPad, then use Office²
If you want it all for free (for as long as you have a good internet connection), then try Microsoft’s free Office Web Apps (browse using Safari on the iPad).