For web browsing or adjustments with some text entering is good. I marked some text to take notes with it as well. But for most other activities like entering menus or during reading it is not really necessary. Scribble application is extremely useless - it is between Alfa and Beta version. Recommended only if you going to browse the net or need to type a lot
/far from convenient but comparing with using the device buttons to reach each letter is much better/.