> Cross-platform is a must for a modern browser platform.
I don’t understand why. I’m very happy with Safari, it works great. Yes, it’s not the fastest to implement web standards. But it just works very well in Apple ecosystem, and for common usage, it’s way more important and useful than to be the best to support web standards, users don’t care about this.
(And to be clear, the situation is really different than the IE6 era, WebKit respects standards, doesn’t invent its own standard and it doesn’t have a monopoly on web browser market)