Due to it's relative infancy, I don't believe many people were aware of SCPADD. If not, they have now rebranded as GameGlass and offer what I think will be an awesome addition to anyones setup for playing SC, among other games. It allows you to use a tablet as an input device, similar to how ROCCAT Power Grid worked, but better.
Here is a link to their IndieGoGo page which has their promo video, although I believe that there will be a free version of this product with an option to pay a subscription for additional services.
I backed them through Patreon and should have access to a beta version next month hopefully so can provide some sort of feedback to this product.
Have a look and let me know what you think. They have a discord channel also where you can make suggestions/recommendations.
If this is not in the right place, please move accordingly. Hopefully this sort of post is allowed.