Lots of good info jeffskent. Thanks!
You mention "picture display apps". What's you favorite? The picture app that came with pro is OK but I would like to limit displayed pictures to a subset of all my pictures.
I still use Windows Photo Viewer on the desktop, where I spend about 95% of my time. I have yet, as I said, found a Modern app that is superior to a regular application. Kindle modern is close because the page change is only a swipe anywhere on the screen. Evernote modern as well, but I still do most of my usage with a mouse and keyboard on a 27" monitor. Only when forced to would I use the 10.6" screen, but it is still usable.