I'd like to request that submitters have an optional checkout. As an association some of our members pay by check or pay over the phone with a credit card for multiple submissions, particularly for classes and events. More importantly, I'd like to receive an email notifying me when a submission is placed, regardless of the payment method.
Thanks for the feedback. Could you post this idea to our ideas section (http://forums.adobe.com/community/formscentral?view=idea)? That way others can vote for this, which helps us prioritize the new features we work on.