There was some mention in a previous thread about this requested functionality - just wondering if it ever made it into a release please? <I have a requirement to create a election / polling form and want to limit the "vote" to each individual logged in wordpress member
"If you want to limit a form so that a user can only submit it one time... that is a little trickier. There isn't a built in option for this. But it makes sense so I will add it to our to do list. Until then it could only be accomplished via a customization."