Pretty quick and informative overview of Windows 8.
Watching the first section, it becomes obvious that users will need to learn the gestures.
I can already imagine what the NNg will have to say.
Touch interfaces aren’t as intuitive as you’d think, beyond the obvious stuff like tapping, swiping and scrolling.
Windows 8 adds another touch interface that users will be exposed to, in addition to iOS and Android. I’m leaving out webOS and Meego on purpose.
The big usability challenge is consistency across OSes, and vendors will have very little incentive to standardize. So, the burden goes on the user, who will now have to remember what multi-finger gesture does what on which OS.
Usability nightmare, and we haven’t even begun to see physiological limitations that will undoubtedly arise.
Compare this to keyboard and mouse, which function pretty similarly on all OSes.
Update: I fear many people think this is no biggie because they are confident they could figure out and remember the differences. Probably, but that’s bad design.