It would be super useful to be able to map fields we create in the lead form to custom fields we create in the sales pipeline to collect various things from potential clients and/or to more efficiently direct the subsequent information requests after a lead becomes a client. I imagine this could be done by opening up our ability to edit the answer part of the custom field request and using tokens to pull in the field names from the given form. I would assume if the field name on the form and the custom field were the same it should work fairly easily but I don't know what your backend looks like.
Barring this, at base, if at least one more field in the lead form could be mapped to 'notes' in the pipeline, it could act as a catchall that would have info show up on the first tab of an opportunity instead of needing to go to lead to see it.