Interesting. Seems like a significant improvement over highlighting and margin-notes, and more collaborative. For a while now I've been thinking that somethin

Interesting. Seems like a significant improvement over highlighting and margin-notes, and more collaborative. For a while now I've been thinking that something like this would be great to have on e-readers. Maybe someone here knows of one that has it / is capable of general programming for it? Specifically e-ink, I'm still not a fan of regular screens for lots of reading.