I have just noticed this since doing the update. Go to a website, I used engadget as it's a good heavy one to test, the very start of the web site comes up, then start scrolling the screen down the web site to the bottom, then up again to the top, then down again. The loading of the site stops dead in it's tracks till you stop scrolling. I'm sure it did not do this before, yes, it slowed it down, but I'm sure it kept loading. It almost seems like today's 4.3 update has changed something and now scrolling is taking 100% iPad power and no new data can be displayed till you stop. Is this just me, I can't go back to 4.2 now to double check. Whilst 4.3 does indeed render the web site faster which is great. I'm sure I used to be able to scroll down and the data kept coming in/being displayed, unlike now where the blue downloading bar stops dead till you stop scrolling. Anyone confirm this change?