Rocketbook is a cool new product. It is similar to Livescribe notebooks in that it has micro-dot paper that uses a special pen and captures what you write to the cloud. The difference is that you can reuse the notebook - put it in the microwave for 30 seconds and the special ink (Pilot FriXion pen) is erased. The company says you can reuse the notebooks about 25 times, which is very nice. One pen is included.
The notebook and app work together and there are 7 icons on the bottom of each page that you assign to the app of your choice, including Dropbox, Evernote, Google Docs or even your email.
Paper notebooks appeal to a lot of people and are easier, at least in my opinion, to take math, science, engineering notes (equations) and draw sketches.
Paper notebooks are a great resource and appeal to many users. Having a paper notebook that also works with digital resources is even better.
It is scheduled to release in June 2015 - they have already surpassed their initial funding goal by over 1000% so it is happening. You can go to the site and contribute to it for early access to products too.
Related:
Analog (ie paper) resources that work with digital
Evernote for Education Resources
Livescribe Pens and Notebooks
Tips and Resources for Getting Organized
Getting Students and Teachers Organized - includes some tips for paper based systems
-