I hacked a search page optimized for the iPhone. It uses the Yahoo! Search API and bits of Joe Hewitt’s iUI library. The address is:
http://www.julienlecomte.net/isearch/
Developing a web application for the iPhone is actually easier than traditional web development because of the fact that you are designing for a specific browser (Safari) running on a specific device with a known resolution (320 x 480)
I hope you’ll find this page useful. Comments and constructive criticism are welcome as always!