The way that subscriptions are delivered means up to five devices can have the Office 2013 programs installed for online and offline use. A feature called Office on Demand allows you to use the same apps on a PC that isn't one of your regular five devices, streaming a version of Word or Excel or another Office app when you need it to edit a document or spreadsheet, without permanently installing the software. The Lync software also allows free HD video conferencing and screen sharing. Small Business Premium customers get hosted Exchange through Office 365, with a 25 GB mailbox and shared calendars, and a total of 10 GB of SharePoint storage for the organization, plus an additional 500 MB of SharePoint storage per user.Home Premium subscribers get 60 Skype minutes a month and 20 GB of extra SkyDrive storage (in addition to the free 7 GB) for the primary user account.To sweeten the deal, the two subscription editions come with extras that aren’t included with the shrink-wrapped software packages: For now, the Office 2013 license includes usage rights for Office 2011 for the Mac.) (Although both subscription types includes the right to use Office for the Mac, that doesn't mean you should expect a new Office package for the Mac.

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