Will WebKit Be iOS' Achilles' Heel?

 Apple recently issued a new beta version of its forthcoming Mac OS X 10.6.8 update to developers, reported to contain fixes for the Mac Defender malware and its variants. Cupertino and the Mac Defender clan have been trading shots since May, with the authors of the malware circumventing Apple's efforts to stomp out their attacks. Meanwhile, Apple is moving even further into the mobile space -- which is what Steve Jobs pretty much spelled out at WWDC, once again talking about the post-PC world.