I beg to differ. Flash is by far the best stream-able vector animation engine.
In case you're thinking Javascript games aren't possible ...
http://www.hongkiat.com/blog/10-most-popular-iphone-web-game...
http://www.petrileskinen.fi/Actionscript/TubeView/TubeView.h...
http://www.unitzeroone.com/labs/alchemyPushingPixels/
http://www.pouet.net/prodlist.php?platform[]=Flash
In case you're thinking Javascript games aren't possible ...
http://www.hongkiat.com/blog/10-most-popular-iphone-web-game...