Even if Apple releases a 7" iPad 3, it still won't give you the full web experience. No Flash!
So let's say Steve Jobs says "Stuff it! Have Flash" then as Xandermac says, the PB is doomed. Probably to the point where some Apple fanboys will say "That's it RIM, you've definitely got no chance now, let us help with demolishing your HQ" and then throw a few nuclear bombs at it... Hilarious as that would be to watch, I don't think the Canadian government would take too kindly to it, nor the enterprises utilising the BlackBerry platform.