Apple's Flash policy is a breach of Postel's Law
And what Apple is doing violates Postel's Law which says you should be liberal in what you accept. Another reason Postel was wise. It helps keep the web from breaking.
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All that sounds nice, but I changed my mind about the issue after hearing the argument from Jobs that convinced me: supporting Flash is a significant effort. Apple decided that it wants to put its limited resources on technology that looks more promising – and that's HTML5. They have done before with floppy drives on iMacs and other technologies considered to be “standards” at the time are now totally forgotten.
Also, applying internet ”laws” to something as closed and self-contained as Flash doesn't really buy me.