looking at betabook, there is really a point in sketch by hand rather than sketching on a mobile device. through the use of markers ( printed or handdrawwn? ), positionen on or next to the sketch, and the mobile device s camera, my app allows to unskew, crop, and adjust each sketch in the best possible way. later the photos can be exported to other apps etcetera …

on a related note: is it possible to overlay the camera image of the iOS device with some kind of drawing to reverse trace a drawing onto paper, like so:

![sketch-drawing-through-screens](https://simthing.org/private/sketches/wp-content/uploads/sites/3/2014/12/sketch-drawing-through-screens-1024x765.jpg)

betabook-the-portable-whiteboard-for-the-digital-age