Flash runs excellent on a Mac, how old is yours?
Flash does NOT run excellently on the Mac; I've got a Dual 2GHz G5 with 6Gb RAM it's a completely bloated friggin' resource hog! A couple of Flash ads on a page can easily send Safari soaring to 80%+ CPU usage. It's *****. I've never been so happy since I got
ClickToFlash and killed all those irritating Flash ads. Flash is awful, and the development environment for Flash on the Mac is awful too.
To the person who talked about how "all video is viewed on Flash, although that's changing since the iPhone"... wellllllll... you just answered your own question. Why do you think Flash started supporting H.264? Because they can see Flash getting sidelined by a non-proprietary codec.
Personally, I hope Apple is just yanking Adobe's chain, and that they stick to all the great HTML5 things they are building support for into WebKit. Who wants a crappy opaque runtime like SWF, that needs crappy software like Flash to author it, when we could have the same result with Javascript and CSS that anyone can work on with a text editor???
Personally, my dream scenario is that Apple's Sproutcore project turns into a full-blown implementation of the Cocoa APIs in javascript, and then in Xcode you have another little platform target checkbox along with 'PPC' and 'Intel' that says 'Web'. Suddenly you have lightweight, powerful and
cross platform application authoring, with Mac OS X the dev platform of choice, leaving overgrown has-beens like Adobe and Microsoft dangling in the wind...