themifyme

Easily create metaboxes for your posts and custom post types, or for user profiles. 
Please note, this plugin is intended for developers, to see how to use this plugin you can checkout the “example-functions.php” file inside the plugin.
Supported field types
<ul>
<li>textbox: general text input</li>
<li>image: image uploader, allows user to upload images directly or use the WordPress media browser</li>
<li>video: same as “image” but only allows uploading video files</li>
<li>audio: same as “image” but only allows uploading audio files</li>
<li>dropdown: multiple choice select field</li>
<li>radio</li>
<li>checkbox</li>
<li>color: color picker</li>
<li>date: date and time picker, with options to change the formatting of the date</li>
<li>gallery_shortcode: upload and select multiple images</li>
<li>multi: allows displaying multiple fields in the same row</li>
</ul>

Themify Metabox

Metabox creation tool with advanced features.

mg12

Allows you select another themes that will be sent to mobile users and tablet users.
为手机和平板用户选择另外的主题显示网站内容，手机和平板的主题可分开设定。
Supported Languages:
<ul>
<li>US English/en_US (default)</li>
<li>简体中文/zh_CN (<a href="http://www.neoease.com/" rel="nofollow ugc">mg12</a>)</li>
<li>Slovak/sk_SK (<a href="http://webhostinggeeks.com/blog/" rel="nofollow ugc">Branco Radenovich</a>)</li>
</ul>
Demo:
<a href="http://www.neoease.com/" rel="nofollow ugc">http://www.neoease.com/</a>

WordPress Mobile Themes

Display a mobile theme when the website is viewed with a mobile/tablet browser.

Themify Metabox vs WordPress Mobile Themes