One issue I've noticed is that if you use a form on a page with plenty of content (eg at http://www.interconnectit.com/training/wordpress-classroom-course/ ) is that when you submit a form the page refreshes and scrolls back to the top. This is obviously sub-optimal, as the user can be confused by this and may even think their form is submitted.
A simple anchor at the top of the notification area that you direct to could fix this.
Maybe there's a workaround, in which case a pointer would be nice, but I reckon it would be good default behaviour.
Still an awesome plugin, btw :o)