If you have your own install of WordPress, it's easy to make an iPhone-optimized theme for your blog -- without changing anything for non-iPhone users. This info might be useful for anyone building web sites with other tools as well. Here are the quickie instructions:
- Make a unique stylesheet, styles-iphone.css, ditching the stuff you don't need, and setting div widths to 320.
- Add this to the header.php file in your theme: