You can create a task and edit a task within a 'dialog box' but I do not see a way to comment on a task without jumping to the task page. While I don't personally find it a big deal to go to another page this does seem to be a bit of an inconsistency in the interface and one of my coworkers feels that it is fairly significantRight now we send you off (or you have to right click and open new tab) the Workboard to view the task, but not when editing. Some people may prefer to stay on the board at all times, see all properties, comments, and leave a comment without leaving the board.