On the kickstarter project was announced a device that will allow real-time transfer to file your notes ordinary ball-point pen on paper. The structure is made in the form of a cover-books for Apple tablet. The delay between the line on the paper and on the screen is only 50 ms. In a built-in slot for SD-cards that will keep recording even without the iPad. In the sale of novelty will appear in the next year, the price is $ 119.
Read another very interesting article about alternative energy of the Sun, water and air.