Active Paper is a thin, pneumatically actuated tab used for writing. Instead of writing a reminder on a post it, the piece of paper itself would be able to move to get the user’s attention at a given time.
Active Paper notes can physically show priority by propping themselves up so that more important memos are physically taller.
Instead of shuffling papers around on a desk, when the user is no longer drawing or writing, the paper would be able to curl or fold itself up to save space. When a note is no longer needed, it would even be able to fold and unfold to move across the desk out of the way. For instance, this behavior could be activated by drawing an X across the page.
This technology could be coupled with smart/digital paper to become highly functional and reusable.