Everything useful has been implemented online already. Case in point: http://www.jswidget.com/index-ipaint.html http://www.jswidget.com/index-ipaint.html (Th

Everything useful has been implemented online already. Case in point: http://www.jswidget.com/index-ipaint.html http://www.jswidget.com/index-ipaint.html (This is just one of many paint-in-a-browser sites.)