A new plugin is out called the iWPhone Wordpress Plugin and Theme. The plugin automatically reformats your blog’s content for optimized viewing on the Apple iPhone and iPod touch. It detects the iPhone/iPod touch’s User Agent and serves up the content
with the special theme only to iPhone and iPod touch visitors, all
other browsers will view your WordPress blog with your current theme.

The “iWPhone WordPress Plugin and Theme” displays an optimized version
of your blog’s content, formatted perfectly to fit the iPhone/iPod
touch’s screen – no zooming in to read the content is necessary.

Demo Sites
If you have an iPhone or iTouch you can point your browswer to http://www.grokdotcom.com/ or to http://www.bazaarblog.com/ to see the live plugin in action.

Feature List

• Formats your blog content for optimized viewing on the iPhone and iPod touch.
• Automatically detects the iPhone/iPod touch’s Safari browser and
  only displays the custom theme to iPhone and iPod touch visitors, other
  visitors get your standard theme.
• Simple iPhone/iPod-like theme with common interface elements that compliments the iPhone/iPod touch’s internal applications.
• Images larger then 300 pixels wide are automatically scaled down to fit the iPhone/iPod touch optimized width.

Upcoming Features/Wish List

• A clickable link or button that allows site visitors to switch between iPhone/iPod touch theme and normal site theme.
• Ability to show Categories and Pages
• Search functionality
• An admin configuration screen that allows easy changing of various settings like header, footer and link colors.
• A mechanism to gracefully remove/hide all content-types not
  currently supported on the iPhone/iPod touch (flash embeds and other
  non-supported formats/plugins)
• An admin version (wp-admin) that allows WordPress administration and posting within the iWPhone interface
• wp-cache compatibility

Tip for Designers & Developers – iPhoney
iPhoney is a free program that allows you as a designer or developer to see your work you are creating for the iPhone without actually needing an iPhone. Check out the website here… http://www.marketcircle.com/iphoney/