Reply to: by tN0

What changed in the final version (from my personal experience):
- Touch mode is now on by default and you don’t turn it off but switch to a “Mouse Mode”.
- all elements are even larger now (compare both screenshots) But most reviewers didn’t complained about touch support after turning on Touch Mode in the preview version
- performance is much better, I didn’t experience this lag in typing anymore but resizing the windows is still sluggish
- full screen mode and collapsing the Ribbon is now combined in one feature. Very handy for working with finger
- they added a gray and dark-gray theme because people complained that the white interface was too bright

It is really possible to work well using touch input. And you could even make it better by changing DPI settings of Windows RT to 125% which makes every touch target even larger. At least as large as native iPad apps on the iPad mini.
While performance isn’t perfect yet, touch does work very very well. Oh and yeah mouse and keyboard too ;)