Since days before updating to the latest windows preview version, I can't get auto rotate to work at all. I have to go into mobile center, and manually click the rotate button, then make sure I manually click and rotate it back when I'm done. Which to me is a huge fail, for now as update should easily fix this. But with that said, I'm done using/trying windows 10 until this is fixed. Most of my day is spent using as tablet/laptop in landscape, but I also need to take notes and mark up PDF's constantly off/on throughout the day, and portrait mode is by far easier for this than landscape. With no auto rotate I find it very annoying and troublesome to manually rotate. Sent a few screenshots and feed back through the feedback app, but no fix yet.
Otherwise I saw the continuum stated for release in upcoming months, and new 'maclike' trackpad gesture support. Now that's great news.