This is one cool plugin, works great out of the box on the Twenty Twelve theme. It adapts to any theme that has specified CSS rules for form fields.
It´s just really important for the future that there is a two step verification implemented, otherwise the european continent will have to look somewhere else. Due to new privacy laws we are forced to check that the email is really from that person (through a link or a unique code) before we are allowed to send them notifications.
Would be cool if you could add that!