I’ve created a list of websites which support formatting for small screens. In some cases the site has a separate URL (e.g. m.google.com) in other cases the server detects device being used and displays mobile version of content (e.g. www.amazon.com). Since I’m using Google Nexus One myself I can’t guarantee how the sites would work on other platforms, but I think almost all of them should be working with iPhone and other web enabled mobile phones, such as my old Samsung Z510.

List is available at

http://m.kozlenko.info

I’ll try to keep that list up to date with new websites. Your additions are welcome in comments