FAQs,_Help,_and_Tutorials

Apple iPhone School - Ste includes screenshots, video demos, written reviews, themes, sources, wallpaper, and a disccusion forum.
Appleopolis - A website for iPhone users to manage and maintain installed iPhone applications. Offers an rss feed to notify users of new content.
HackThatPhone: iPhone Modding - Featuring Mac and Windows instructions for modding your iPhone.
Installer.app: Application Manager - A UIKit based package manager for the iPhone. Downloads, documentation, and polls.
My iPhone Tricks - Weblog site with focus on customization and accessory reviews.