I have a Nexus S that shipped with 2.3 and did not have smooth scrolling. Then I got the OTA for 4.0 this summer and all scrolling was totally and completely sm

I have a Nexus S that shipped with 2.3 and did not have smooth scrolling. Then I got the OTA for 4.0 this summer and all scrolling was totally and completely smooth. I recently updated to 4.1, and scrolling is now significantly worse than it was when the phone shipped with 2.3. > I'll believe it when I see it. I saw it. Then I didn't. I don't know what to believe any more!