I’m not sure how I feel about this gadget. (Write your message with your finger on the trackpad and it appears on the yellow stickie screen.) I love that popsci.com gives instructions on how to build it yourself. It’s clever. It’s tre-geeky. However, it just seems a bit much on another level. I want it to do something else for the $175 in supplies, but I guess that’s whole point. The beauty is that it completely over-engineers the simplicity of the Post-It Note.