Have you noticed how regular web pages look so small on the iPhone? By default the Safari browser shows you the whole web page which is supposed to be a LOT bigger than the iPhone display. But some sites have great 'mobile' versions of their site that fit and behave perfectly on the iPhone.
What's more is all the jQuery and regular psd2css Online features work there too - dynamic menus, multi-page sites, image galleries, even WordPress, Drupal and Joomla!
Check out this video tutorial about how to use it:
Here is the PSD file used in the video:
And you can see the generated code in action here (point your iPhone browser to this url):