Apple debuts iPhone Developer Connection site
developer.apple.com
Still no SDK, but this is at least a useful resource for developing web-based iPhone content.
developer.apple.com
document.onDoubleTap = function(event) { alert("double tapped at [" + event.x + ", " + event.y + "]"); }
But I haven't found documentation anywhere. Does anyone know where it's at, or if it exists yet?