I would like to see the option of an advanced Lead creation in Marketo. I appreciate how quickly you can create a Lead by only requiring First Name, Last Name, Email Address, and Company Name, but what if you want to trigger off the Lead creation by state, or industry? You have to do some finessing to your campaign as well as update the record after creation.
I'm thinking a hyperlink that expands your options of fields you can enter would be great. Nothing would be mandatory after the first four I mentioned above (ideally you would be able to determine which fields are included/mandatory, but I'm not trying to be greedy).