iPhone 3.0 OS Guide: Everything You Need to Know
iPhone 3.0 OS is the next generation operating system for the iPhone, iPod touch, and whatever Apple has up its sleeve due out this summer!
This is a major update and addresses many of the (very few) gripes users, including myself, still have with the iPhone. The link above is a hands-on tour and first impressions with screenshots by (beta?) users. Enjoy!