First published on MSDN on Oct 12, 2012
Office 2013 has hit the RTM milestone. I've read that MSDN and volume license customers should be able to get their hands on the product sometime between mid-November and early December. Retail availability looks like it will be in early 2013. I would expect that Windows Surface RT should ship with an RTM versioned product! For the full details, check out the Office team blog.
http://blogs.office.com/b/office-news/archive/2012/10/11/office-reaches-rtm.aspx
