A message to everybody.
Due to bandwidth/traffic limitations from Player.IO I won't make it so you can choose the sketch you want to see, or pause/stop the sketch beeing drawed because I think that would make the traffic go to high, thus exceeding the limit.
Also, if I make an eraser, the objects stored in the DB would be heavier, since I would also need to store the eraser strokes. What i CAN do is an UNDO button to delete the last line.