[ time permitting issue! ]
1) At one point, the REST actions delivered text, JSON, and HTML. THis might have been lost along the way. We should restore this since it's a cool feature.
In the REST controller you will also see actions for fields for even finer grained web service access. (eg get the common_name of a gene):
2) perhaps we could have a page (or pages) that doc
3) We could also have a "download" option for widgets that use this interface.
4) Finally, we should think about a page/pages for documenting this feature.