I wish I could just draw and make notes right on the canvas. So I make my topic map as usual, but that I could also make simple scatches and notes in addition to creating a new topic. I would wish me that there is a simple drawing tool like gpaint, MS-Paint or likewise in the browser which allows me to piant on the canvas. I could then export the Map as an svg. This would make life of creative people even nicer with DeepaMehta.