On the subject of WebKit, what you said is bollocks for two reasons. 1. You are conflating the rendering engine with the browser. Safari on Mac and iPhone uses

On the subject of WebKit, what you said is bollocks for two reasons. 1. You are conflating the rendering engine with the browser. Safari on Mac and iPhone uses WebKit as a core technology—really the preeminent core technology—but they are not WebKit and WebKit is not Safari on either platform. 2. Similarly, WebKit is not KHTML and KJS. WebCore and JavaScriptCore are forked from KHTML and KJS—and Apple did not and to my knowledge has never downplayed that nor denied it—but a fork of a project that sees significant new development work becomes a new project and takes on an identity of its own. By the time the iPhone was released, WebKit had been in development inside Apple for 6 years; and public knowledge since its announcement and Safari’s public beta for 4.5 years. KHTML and KJS deserve and I believe actually receive their due respect, but it is wrong to say Apple did not develop their own web browsers.