I have been using an iPad with a pencil for a very long time. I love taking notes this way. I do not convert my handwritten notes to typed text, using OCR, but rather enjoy the freedom to supplement my notes with doodles, diagrams and, generally, a 2D layout.
I also love Kinopio. Its light-hearted layout and love for details. Its support for collaboration on visual spaces. Its open API. It already works pretty well on my iPad.
However, it doesn’t support my pencil to write or draw in spaces. I would love to see support for this. Kinopio & handwritten input seems like a match made in heaven