Many developers started to experiment with iPhone specific interfaces for their applications (like 37 signals TaDa List) or even new applications for the mobile phone (like the dashboard-like widget-launcher gridget from CulturedCode).
Apple completed their developer resources for the iPhone. They now provide also sample code in the Apple Developer Connection besides the iPhone web development guidelines discussed before. "Puzzler" is a fun-app that shows how to create a web application with JavaScript and different mouse-handlers for user-input.
Joe Hewitt created “iUI”, an iPhone web application development bundle. Don’t worry - it sound complicated, but it isn’t . It just helps developers to create iPhone applications with the iPhone look and feel with JavaScript and CSS.
I cannot wait to get the iPhone in Europe!