is it possible to have model window or in same window for comment ,Task and status change together for contact
Similar to salesforce or other crm system
Please let me understand what is the requirement more clearly. You were asking if there can be a page where user can edit the multiple details along with the status change right ?
A workflow action can be configured with a status chagne page. And it can be edited to add any of the object feilds.
Doesn't that cater your requrement ?
Or are you looking for a status change page which dispalys as a pop-up rather than a normal page ?