I think many of your criticisms apply to current Javascript UIs also. I have seen so many UI quirks, even in the stuff you'd think would work right like YUI/JQu

I think many of your criticisms apply to current Javascript UIs also. I have seen so many UI quirks, even in the stuff you'd think would work right like YUI/JQuery UI. However, its saving grace is its composable nature. The biggest problem with Flash in my mind, and what will seal its doom, is that monolithic mentality that you should have a whole site that is only a flash program. That's wrong and throws away a large part of makes the web great. If you aren't building stuff out of the dhtml/dom substrate, if you're not basing architectural decisions on REST, you are doing it wrong.