[Cthulhu_]

Actually, the issue is not "no choice in rendering engine", the issue (with IE6) was "a shitty rendering engine" - I for one don't care if Safari / Webkit remains the only rendering engine on iOS for eternity, as long as webpages work and look well. Because that's all that matters to me, as a consumer.

[jarek]

IE6 wasn't shitty when it was released, it was shitty after a couple of years of no updates. If a substantial amount of users stays on older iOS releases, you will see the same problems with old Safari versions. (As you might already with the default browser on Android 2.3, for example, though availability of e.g. Opera, including the new Webkit Opera, helps by providing an alternative there. There won't be new alternative engines for old iOS versions.)