Differences between IPhone et computer versions of a website

There are two general approaches to formatting a site for a PDA like iPhone vs. a conventional

1) Use an iPhone template and framework and create an alternate site that way - the user agent is detected at each page load to determine which site the user sees.

Information here - read comments on that page for server side solutions

2) Through CSS create a custom stylesheet - loaded based on the user agent, the same process developers use for a "friendly print" page or accessibility device like a screen reader based on the media type. This is preferred when an existing site exists, you're not starting from scratch.

Information here - awesome looking templates, too


And finally...

Read this for the basics on PHP, user agent detection, conditional loading.

-jim