Drag and drop pad for papers
I am not talking about electronic pads at the moment. What I miss is a real pad that could allow you to drop paper on it so it sticks (and not fall down by itself when you shake it), but still you can easily remove the paper or move it around just with your finger. The biggest point is to allow it to work with normal paper without any glue or magnetic layers so you can print or handwrite virtually anything on a simple sheet of paper and just drop it on the pad. Would be great for brainstorming or any other team work especially outside. I guess static electricity might be right way to solve it (sometimes paper sticks on my laptop screen when I try it) although there might be an issue with charging. Non-electronic device would be better I believe.