This is for people who said that tiles look complicated and it would take time to find appropriate app to launch, compared to how easy it is to find an icon.
The reason why it is easy for you to find appropriate icon is because you are used to it. Every single iOS is the same, it's icons. Of course after 3 years of having same icons over and over the screen, you will get used to it. I am sure if you are to have tiles on a device for that long, it would be easy to located needed app too.
And where are the cues from ipad? There is nothing, absolutely nothing that is similar to the iPad. How the hell can tiles and icons look the same? I wish some people would just put their fanboyism aside and see that Microsoft did a fantastic job on it. And being able to snap on different windows to side of the screen is the best feature on Windows and absolutely blows away anything other companies offer. Win 8's type of snapping looks even more fantastic. I can't wait to try this one out, although I will replace my Xoom only after Win 8 and MeeGo hits tablets.
And it's pretty clear that this type of UI will be for tablets, while old school Win UI will stay on desktops. Why would a giant like Microsoft shoot themselves in the legs by substituting good old desktop UI for tiles on full machines.