Like @bcrowell I need my users to take the same survey regularly (say every 2 weeks) over a year. This plug-in suits me perfectly, except for that feature.
Survey results will be presented in a graph to the individual participant (x-axis is time), ie. we cannot clear data after each time a participant has filled the survey! It would be great with a time-out option, allowing a user to repeat the survey after a certain amount of time.
