I'd love to see you provide support for altering the HTML that Gravity Forms outputs. Ideally I'd like to be able to easily use Twitter Bootstrap's form styles.
The fact that Gravity Forms wraps every label & field with list items makes it difficult to use their styles out-of-the-box. Rather than list items, Bootstrap just needs the label and field outputted — not wrapped in anything.
Is there anyway to alter the HTML output now without hacking the plugin? Maybe a template override? Do you have plans to provide more control over this in the future?