WordPress Mobile Edition Plugin
Download: Download WordPress Mobile Edition.
Latest Release: Version 2.1.1.
Compatabilty: WP 1.5 upto 2.3. (not tested on 2.5).
Developer: Alex King.
Description: WordPress Mobile Edition Plugin will display your site within an interface optimized for mobile and PDA devices, when ever visitors visit from any mobile device.
WP-Wap 2.30 Plugin
Download: Download WP-Wap 2.30.
Latest Release: Version 2.30.
Compatabilty: WP 2.1 +.
Developer: Lester Chan.
Description: This plugin allows visitors from mobile devices to view your WP blogs content online.
Forum: WP-Wap 2.30 Forum.
*Note: This plugin is no longer being developed. (This is still a powerful and very useful and strangely under used plugin).
iPhone / Mobile Admin Plugin
Download: Download iPhone / Mobile Admin Plugin.
Latest Release: Version 2.0.1.
Compatabilty: Requires WP 2.2.2 or higher.
Developer (s): Jared Bangs and Dan Cameron.
Description: Mobile Admin is optimized for the iPhone but also works on almost all other mobile browsers. The plugin adapts the WordPress admin UI to be more friendly to mobile devices, specifically phones.
Mowser WordPress Mobile Plugin
Download: Download Mowser WordPress Mobile.
Latest Release: Version 2.5.
Compatabilty: Requires WP 2.0.2 or higher.
Developer: Mike Rowehl.
Description: Mowser (http://mowser.com) includes a service that allows publishers to display their existing web content to users on mobile phones and other handheld devices. This plugin detects when a user is on a mobile phone and automatically redirects them to the Mowser optimized version of the page they were trying to access.
WPhone Admin Plugin
Download: Download WPhone Admin.
Latest Release: Version 1.42.
Compatabilty: Requires WP 2.1 or higher.
Developer Homepage: http://wphoneplugin.org/.
Forum: WPhone Admin Forum.
I love this plugin!
WordPress PDA & iPhone Plugin
Download: Download WordPress PDA & iPhone.
Latest Release: Version 1.2.6.
Compatabilty: Requires 2.0.1 or higher.
Developer Homepage: http://imthi.com/wp-pda.
Forum: WPhone Admin Forum.
Description: This plugin helps your readers to view your blog on a PDA, iPhone or any other mobile browser.
Note: iPhone is still in beta testing state.
WordPress Mobile Plugin (wordpressmobile.mobi)
Download: Download WordPress Mobile.
Compatabilty: Requires WP 2.1 or higher (up to 2.5).
Developer Homepage: http://wordpressmobile.mobi/.
Description: Make your WordPress site accessible on a mobile phone with this plugin. Now your posts, pages, archives and comments can be viewed on a mobile device. Standards are supported, posts and comments can be submitted by phone and your WordPress mobile site is easily moneitized by AdMob.
Note: This is a very popular plugin, currently 23,219 downloads.
WordPress.com users can access there blogs content by visiting here WordPress Mobile Gadget.