I have the Jot Pro tried on a iPhone and iPad and find it very convenient. One can use instead of the finger or even, as I have tested it with a sign-App him for details of operation. The app with which I have used the Jot Pro is called Retouch and is an app in which you use a photo as a basis, and with brush can paint over it. For this purpose it is possible to use the super Jot Pro. However, I noticed that he, when I go out of the metal tip of the plastic disc, has a slight misalignment of 1mm while drawing. When you get used to it and the brain has implemented this offset and factored it fits sometime, but beautiful course would be if it were accurately. I have to say is a small lightweight agile guy to handle. At just good 12 cm in length, it fits into any pocket, the cap is rotated, which I find very convenient because it does not come loose accidentally in your pocket, which could certainly go out ugly for the sensitive head. The clip, which similar to the transport on the shirt pocket to serve, I will not appear in handy he is not flexible as a recess in the solid material. I personally do not mind further that, because I always aufbewahre him in his pocket.
All in all I can recommend the Jot Pro. It is handy and so far I had no problems with it. As I said, the accuracy could still be a bit more precise, but I can live with.