There's several threads out there relating to the new preview release of 8.1, but each seems to be focused on certain things - installation, mail, etc. This can be a place where we post neat stuff we've found. So far... 1. Media on my SD card works in the Libraries - the apps see the files as expected. No workarounds, no mounting SD to a folder. I have a Music, Video, and Pictures folder on my SD card that is mounted as the D Drive. I mapped those folders to their respective libraries. I did have random times when I couldn't find the Libraries in Explorer, but going to Desktop in Explorer makes it available. 2. Music is MUCH better! THANK YOU! Opens faster on RT and less lag in general. This was the only app that ever made my RT lag noticeably. 3. Auto opening content to 50/50 view is GREAT! I was in the People app, clicked a Facebook post that needed to open a browser - it opened side-by-side in IE instead of going full screen on top. Nice touch. The 50/50 view in general is a great thing. 4. The Photos app loads thumbnails faster and fits more on the screen. The old way was more flashy and looked cool, but this is more functional. As for negatives, the old mail app is a mess - cant get my accounts to connect. The IE seems to have some issues with not being recognized or handling content on pages properly.