Is there a possibility to have the standard field types (dropdown, radio, checkbox, etc) applied into / within a custom field type? For "WP-as-a-CMS" use case scenarios, using Gravity Forms as a basic data entry tool for non-authors would be fantastic.
For authors, I've been using the More Fields plugin (http://wordpress.org/extend/plugins/more-fields/) to customize the admin console for a similar effect. Although the support for it leaves something to be desired. The concept it has implemented of using custom fields to create custom data types and post types in the admin console is fantastic.
I know that enhancing custom fields and post types are on the radar for a future WP core functionality. It would be great if Gravity Forms could be looked at as strong references on how to implement that type of functionality.