No one knows for sure either way yet. So wouldn't most people's opinion on the subject be inherently lacking in the 'reliable source of information' department? He usually provides links to the other side of any given argument. Isn't it really up to the reader to decide what they believe? I tend to agree with him on this one because web apps on 4.2 weren't exactly impossibly slow and unusable. The performance increases in 4.3 are nice but it doesn't really make any huge difference to someone's ability to write good web apps today. Apple could have just removed the ability to launch web apps from the home-screen entirely if they wanted to. Why would they be so sloppy at executing a grand anti-competitive conspiracy?