[justincormack]

Probably time for Apple to start using the process sandboxing from Chromium in Safari. If you are running a jit you need to make data executable so it isnt going away. As Apple control the OS they should be able to design a good Javascript sandbox.

[rsfinn]

Actually, it looks like Apple's approach is WebKit2 <http://trac.webkit.org/wiki/WebKit2>, which will handle the UI/web process separation itself, allowing any client application to benefit (as opposed to Chromium's current approach).

Perhaps you just meant the UI/web process separation itself, but it's interesting to note that Apple is going for a more general-purpose solution.