Windows Embedded 8.1 has now reached general availability. New versions of Windows Embedded 8.1 Pro and Windows Embedded 8.1 Industry Pro (and Retail) are now available to order.

Microsoft has detailled all new technical features in Windows Embedded 8.1 Industry Pro (Retail) in the following blog post: http://blogs.msdn.com/b/windows-embedded/archive/2013/09/05/what-s-new-for-windows-embedded-8-1.aspx