How to use Flag to trigger opening a custom CCK form for editing?

This seems like a very common task yet I can't seem to do it.

I want to have flag button on a page that an anonymous visitor can click to open a custom CCK form to enter email, and a short note, to be sent to an email address and have the form saved in the DB as a node so I can look at it later with Views. I also want the NID of the page that was flagged to be passed to the form. (I am using the dev version of Flag that allows anonymous flagging)

Webform can do this I believe but does not save items as nodes, so it's limited to what the module gives you.

Using Rules seemed the obvious choice here. I can do everything except open a form for editing. The only logical choice is "Node - Add new content", but that simply creates the node and does not open it for editing, unless I'm missing something.

I could always just do a redirect to the node creation menu item for the CCK form, but I'm not sure the NID of the flagged page would be atomically passed, unless session API handles it by keeping track of the anonymous user's session ID.

I would think that a common Rules action would be opening a CCK form to create a new record but allow editing too.

I even thought of using rules to go back and modify the CCK fields of the node that was just created but that might suffer from atomic NID issues too - not sure.

Any advice?

Tnx, Jeff