We need the ability for a user to key in "preliminary" data in a lead collection form.  Use case: a salesperson is at a conference, the salesperson would enter the conference information, then for each lead collected, that conference information would be included in the lead records.  We could accomplish this with a parent/child form, but the resulting form is messy and insecure in kiosk mode--leads would be able to see/delete other leads.  Right now we accomplish this with complex and error-prone "educated guess" code in the back end.