Earlier quoted context omitted.
Assuming Apple asked them not to do multitouch, probably just a decision that the rewards outweigh the risks.
The browser looks a bit flaky. Watch the end of the video where he double taps and the whole screen goes white, or at the very end when he pinches to zoom, and the view jumps into a side bar. The main column of text on the page seems to be jumping about, sometimes full page width, sometimes half page width. The maps app seems like it could do with some work too, a couple of times the whole screen goes grey while he z…
The map screen goes grey because there it is still loading the data for that zoomlevel. While there could be some icon indicating the loading process, it's not that bad, i think.