I don’t think we should. Browsers are probably the single most competitive piece of software out there. Microsoft, Google, Apple, Mozilla – there is no reason to fret or even care about what Safari does.

Webkit is different but this doesn’t seem to be about Webkit.

At least here, there's the alternative of using existing ad-blockers for Safari, which are typically SIMBL plugins or otherwise sidestep the official plugin channels.

I'm in the audience. They're demoing the AdBlock port now and it looks really good.

Oh boy, no apple in browser extensions/apps.

Technically, sandboxing is inspired from chrome. And even packaging sounds lot similar to chrome.

http://code.google.com/chrome/extensions/dev/packaging.html

Now how apple distributes those 'digital certificates' is important.