More Actions > Edit Confirmation > Let everyone see response summary
Google's summary looks like this: http://spreadsheets.google.com/viewanalytics?formkey=dDBXako....
The form for that sample is here: http://spreadsheets.google.com/viewform?formkey=dDBXako0djZq...)
And here's the response page: http://spreadsheets.google.com/formResponse?formkey=dDBXako0....