Feature Request: Allowing users to update private response

[icweaver]

Howdy. Are there any plans to allow users to update their response without needing to create an account, perhaps similarly to whenisgood's approach of using a unique url?

Our use case is collecting 50+ responses from applicants that are private from each other (love your advanced option for this!), while still allowing them to go back and edit their response in a new browser session if needed

At any rate, thank you for providing such a slick service to the community, it's been so useful for our education nonprofit