Mike Schinkel

NewClarity

This plugin does what it names says; it omits page templates from the parent theme from the template dropdown when you are editing a “Page” in the WordPress admin.

Omit Parent Theme Page Templates

Omits Parent Page Templates from the "Page" edit screen in the WordPress admin.

mitcho (Michael Yoshitaka Erlewine)

Over the course of the development of a custom theme or application, custom page templates can start to build up. This plugin adds a “template inventory” tool which lets you see which templates are actually used.
Development of this plugin was supported by <a href="http://arts.mit.edu" rel="nofollow ugc">Arts at MIT</a>.

Page Template Inventory

Over the course of the development of a custom theme or application, custom page templates can start to build up. This plugin adds a "template in …

Omit Parent Theme Page Templates vs Page Template Inventory