I’ve been toying with the in_place_editor helper, and it’s pretty cool. However, I was wondering if it could be used (or if there is an equivalent that can be used) to add new records. For example, in Tadalist, you can add new items to a list by clicking an add button, which pops up an AJAX text field right there. I think that this is also the case for adding tags to Flickr photos.
Any ideas as to how you would go about doing something like this?