Not sure if anyone else has noticed, but it seems when I'm on a web page with large images, the Nexus S gets real choppy (or even hangs) when scrolling through an image. It's fine again, even on the same page, once the image is past the screen.
I never had this on my Nexus One. Curious why the S would be slower in that regard.
Yes its been covered already, an update is needed to enable graphics hardware in the browser. The same was needed for The galaxy s phones. For some reason Google did not do this for release of The phone.