I love Yanko Designs. I discover interesting concepts and thinking there all the time. We’ve seen any number of digital versions of the venerable Post-It-Notes concept for computers and the like, but this one looks kind of interesting, especially if you’re into the green thing. Note that they say don’t call the E-Note from Sequoia Studio a Digital Post-It-Note. The idea is that digital paper allows you to write and erase on the notes that you post. It will also allow you to set alarms and you can change the color digitally. If you watch the videos, you’ll see that the digital notes need one minute of light to keep the time and date as you set them.