Hmm. I got no audio on your video (via PC).I could do without iOS 4 on my 3GS. The battery is crucified. It only lasted about three hours until I turned mail push off. Now I am still lucky to get through 10 hours without needing to recharge it.The folders and integrated mail are nice but there are lots of annoyances:* Some programs have started to crash (Accuweather)* I now have to turn programs off twice to increase battery power, i.e. to stop them running in the background (this is really stupid! There seems no point in very app I open continuing to run in the background).* Occasionally apps open in a jerky fashionOverall, a bad choice to upgrade. Will try restore and if no change got back to iOS3 (if this is possible).