https://app.inq.live/

https://app.livescribe.com/

https://www.lenovo.com/us/en/p/accessories-and-software/stylus-pens-and-supplies/stylus-pens-&-supplies_pens/gx80k32882

Digitize your notes: Step by Step Using Neo Smart Pen https://www.youtube.com/watch?v=Otj3x_9h2RM

Nothing brilliant. the Neo Smart Pen looks like a direct competitor to Livescribe with Anoto paper

http://www.styluslabs.com/

Write300.app