I was messing around with the Win 8.1 preview in a VM tonight and noticed that you can have the Desktop Mode opened half screen along with Modern UI apps on the other half of the screen. I haven't heard anyone else mention this capability, only 2 Modern UI apps sharing the screen at any one time.
http://www.eightforums.com/tutorials/4439-metro-multitasking-run-two-metro-apps-same-time.html
...
↧