To install on the Windows 8 PC, I used a product key given to me by Microsoft for pre-release testing, otherwise you would have to go to Office.com to buy a subscription and get a product key. (A free 30-day trial is available.) The Windows 8 PC install took about 20 minutes, and a helpful introduction walked me through key points of Office 365.

WSJ: Review of Office 365: A Fresh New Office Finds a Place in the Cloud

Microsoft just announced that its Surface Pro tablet will go on sale February 9th in the US and Canada, with wide retail availability beyond just Microsoft.com and Microsoft Stores.

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