S60 browser supports Flash, yes, does it handle flash videos well? No. It tends to stutter, get unstable and slow, on Android Froyo its handled smoothly, as if you're on a PC, got to try it on a Desire, and was very impressed, going to flash my X10 with the 2.2 custom ROM once the guys over at XDA are done with it just for it, but for now Skyfire does the job. The weird thing is that the Android version of Skyfire is a great browser, its got proper offline settings, and loads pages so quickly, we were screwed over from the very beginning in Symbian as that Skyfire was basicaly a Beta v1.0 before they then made a proper browser for Android and iOS, even though the former doesnt require it in its latest version.