Microsoft will offer new buyers (as of October 19) of its existing Office 2011 standalone software for Macs the option of receiving either a free year's worth of the newly-announced Office 365 Home Premium -- a new consumer version of the online edition of Office that runs by subscription -- or a free upgrade to the next version of Microsoft Office for Mac. The promotion appears to be an either-or offer, but may give Mac users (for the first time) access to the entire suite of Office applications -- and a better look at the previously business-only Office 365.