This module adds a CCK table field type that lets you add a table display to any content type without having to manually enter HTML. It currently parses text data to form the header and row content. The output is generated by the theme system, so you don't have to worry about formatting valid HTML or adding all those little classes yourself.
A related module is Tablefield. It is a more advance version of this module.
JS Callback Handler is a solution for creating highly performant server requests. This includes, but is not limited to, creating simple JSON callbacks.
This API is intended for module developers who wish to provide more of a "lean" approach to the Drupal bootstrapping process (not the front-end framework).
Note: this API does nothing by itself. It requires other modules to leverage its functionality and APIs.