Can you show us some touch screen pictures of your integration of WUN, OPII and the Windows 8.1 tablets?
My touch screens are very basic, providing only the required functionality in the area that they are assigned to. This is done to accommodate my many non technical guests.
Unfortunately, the size of my pictures exceeds the limit of the forum. So, I posted two pictures on my One Drive account
http://1drv.ms/1IH85RZ
The first picture is the main form which has minimal Weather underground info and temp/humidity info. It also has very basic button functionality so as not to overwhelm my guests. The status bar at the bottom displays push notifications such as zones tripped/ready states, thermostat changes etc. Hitting the "Display Camera View" button brings up the second form, the camera form which displays four of my CCTV analog security cameras. It also allows the user to turn on/off all the exterior lighting.
The app provides a popup form for two cameras located at the front and rear entrance to the house. I'm not a big fan of the popups since I get a lot of false triggers especially very early in the morning. I live in woods of NE PA and I do get a lot of critters such as black bear, white tail deer, wild turkeys, foxes, coyotes etc. passing thru my property that tend to generate a lot of false triggers.
To reiterate, the forms were designed to be functional and intuitive for the most inexperienced technology user. IOW, Keep It Simple for the end user.