I don't mean to nitpick, but that's actually a quote from one of the last issues of The Whole Earth Catalog.

http://wikipedia.org/wiki/Whole_Earth_Catalog

Yeah that's where he got the quote from, but he popularized it in the context that we use the phrase in, so I think it's ok =)

I guess that's a matter of opinion... they're changing things, and whether that qualifies as improvement is, in most cases, likely to end up being pretty subjective (unless the change is exactly limited to something like "our pages now all render twice as fast!").

And really... do we need to make everything about something Jobs said? The only part I'd agree with here is that "foolish" might apply if they drop the ball by making the UI less usable/intuitive, in which case "stay foolish" is horrible advice and will negatively effect a whole lot of users.