“The worst gesture might be the one to reveal the list of currently running applications: you need to first swipe from the screen’s left edge, and then immediately reverse direction and do a small swipe the other way, and finally make a 90-degree turn to move your finger to a thumbnail of the desired application. The slightest mistake in any of these steps gives you a different result.
The UI is littered with swipe ambiguity, where similar (or identical) gestures have different outcomes depending on subtle details in how they’re activated or executed. For example, start swiping from the right to the left and you will either scroll the screen horizontally or reveal the charm bar, depending on exactly where your finger first touched the screen. This was very confusing to the users in our study.”
Nielsen turned actual users loose on a bunch of “8” PCs and reported folks were dazed and confused. The OS is “Windows” in name only and nothing that has been learned in decades of GUIs has been improved in the latest release. It’s “square one”, literally, all over again. GNU/Linux with XFCE4 and xdm would be a much more comfortable environment. I know people who hated “7”. They are not going to love “8” either. Ordinary consumers are now demanding choice and they aren’t getting what they want from M$.