I would like the customer to login to save the form and continue later

An idea for the future. 

What I would really like to be able to do:

Have a page when a customer has to log in to fill this form ie look at  booking in form part 2. because it is a long form and may not have all the information at hand. So I would like the customer to log out and later log in again with all the information still there and update it then send it or submit.

What do you thing chaps

Unless you have it for your launch 1st Feb. Tell me is there anything different with the try it now jotform4 and 1st Feb version?

We already have this. However, not by creating a login or having a login/logout page. Please check the following guides:

https://www.jotform.com/help/97-How-to-Save-Forms-and-Continue-Later

https://www.jotform.com/help/227-How-to-Enable-Auto-Fill-on-Forms

The first link allows you to save and continue using any device and browser for as long as the session URL is saved and use.

The second, however, requires you to continue using the same device and browser as it only saves the data on the local browser storage. 

Please try it and let us know for issues.