Of course he didn't specifically mention mobile safari. That's why it's a "principle": it applies to other situations too. http://en.wikipedia.org/wiki/Poste

Of course he didn't specifically mention mobile safari. That's why it's a "principle": it applies to other situations too. http://en.wikipedia.org/wiki/Postels_law http://en.wikipedia.org/wiki/Postels_law If anything, websites that depend upon Flash are "defective implementation that send non-conforming messages".