cleanscript

A very simple plugin that provides information about the Custom Page Templates available in the theme: What they are, which are not used and where the used ones are used, selectively.
Main features: 
Available page templates list 
Unused page templates list 
List of page templates with checkboxes that output when submitted the links where they are used

Cleanscript – Page Templates Info

Find information about your page templates. What they are, which are not used and where the used ones are used, selectively.

GreatBlakes

This plugin allows developers to have at a glance information directly on the WordPress Admin Dashboard. From basics like domain and server IP to more advanced like registrar, expiration date, and page speed timing. Additionally, a second metabox is available which finds TODO comments in the theme and organizes them. It also allows for categorizing and prioritizing the TODO tasks.
<ul>
<li><a href="http://gearside.com/wordpress-dashboard-todo-manager/" rel="nofollow ugc">Documentation for the TODO Manager</a></li>
<li><a href="http://gearside.com/wordpress-developer-information-dashboard/" rel="nofollow ugc">Additional documentation for the Developer Information Metabox</a></li>
</ul>
<a href="http://coderisk.com/wp/plugin/gearside-developer-dashboard/RIPS-zY6XIU8eRW" rel="nofollow ugc"></a>

Gearside Developer Dashboard

Add metaboxes on your WordPress Admin Dashboard for developer info and TODO Manager

Cleanscript – Page Templates Info vs Gearside Developer Dashboard