It is probably a good idea to download from this link http://www.decodephp.com 
as the wordpress plugins download sections seems to miss the tempfiles directory or the file in it for some reason , 
this directory is very important for the plugin to work.
This plugin will help you quickly switch between wordpress admins by letting you select from a list of blogs you have entered in the 
WP Admin Switcher administration section. Assuming you are on the posts management page , and you select a different blog from the drop down you will be immediately switched to that blogs posts management page. The plugin attempts to keep all functionality intact. When you are on the other blogs page , you continue to see the drop down , you can select “Parent Site” from the list to jump back to the parent blog.
The plugin will also work with free blogs hosted at wordpress.com.

WP Admin Switcher

It is probably a good idea to download from this link http://www.decodephp.com

Sparanoid

Relative URL applies the <code>wp_make_link_relative</code> function to links (posts, categories, pages, etc.) to convert them to relative URLs. Useful for developers when debugging local WordPress instance on a mobile device (iPad, iPhone, etc.).
Notice: This plugin SHOULD be used for local development only. I haven’t tested on a production environment; it may work with some issues, like unwanted URLs in RSS feed or sharing URLs are replaced with relative URLs, etc.
More information please visit my <a href="https://sparanoid.com/work/relative-url/" rel="nofollow ugc">site</a>.
For example:
<pre><code>http://localhost:8080/wp/
</code></pre>
Will be converted to:
<pre><code>/wp/
</code></pre>
And..
<pre><code>http://localhost:8080/wp/2012/09/01/hello-world/
</code></pre>
Will be converted to:
<pre><code>/wp/2012/09/01/hello-world/
</code></pre>
And..
<pre><code>http://localhost:8080/wp/wp-content/themes/twentyeleven/style.css
</code></pre>
Will be converted to:
<pre><code>/wp/wp-content/themes/twentyeleven/style.css
</code></pre>
Then after activating this plugin, you can simply access your local instance using <code>http://10.0.1.5:8888/wp/</code> on your iPad or other mobile devices without having styles and navigation issue.

Relative URL

Relative URL applies wp_make_link_relative function to links to convert them to relative URLs.

WP Admin Switcher vs Relative URL