The title of properties editor is "Properties (Generic)", when you are editing some activity. Instead of "Generic", what task node (type of task node at least) is being edited could be shown. It seems this feature works well for other types of elements - e.g. sequence flow, events have correct title. Another thing are titles on mouse over these elements - again, it shows "Generic" for tasks, see bug 1006997. It would be great to have there two features consistent.