When it comes to learning, feedback is critical. So when it comes to one's writing, the principle is no different.
I have been teaching English for only six years but have struggled with this feedback process time and time again. I realise it is the most important part, and yet to do it effectively, I must commit literally hours to making sure I do it right. It's the proverbial thorn in my side.
Then when we went 1:1 with iPads in December of 2011, we discovered Notabilty. I played around with it and at first was impressed. I thought it to be a very versatile note-taking app. Then I discovered that it also has the ability to record audio along with the notes. And that's when the lightbulb exploded.