I agree with the people who say "just because it's there doesn't mean you have to use it," to an extent. But this is a standard document format for the Internet we're talking about here. What does it say to me if I'm working on one of the platforms where Flash is not supported (or inadequately supported) and someone sends me a PDF file that contains embedded Flash content? PDF was just about getting to the point where it was more-or-less ubiquitous on a wide variety of devices. I can read PDF files rendered in full-screen graphics on my Nokia 770 Internet tablet, and my BlackBerry can even extract the text from them. For either of these devices, a PDF with embedded Flash would be unusable. So now we've gone from a virtually-ubiquitous PDF to a version of PDF where, if I get a PDF file via e-mail, I may or may not be able to do anything with it, depending on what kind of equipment I plan to view/print it on. How is that a step forward?