My 2 favorite upcoming features of the X phone are: Always Listening and Active Notifications. You can now get both of theses features without root and for free!
For the Active Notification app, just install the free app. You don't get the exact same functionality. But the developer says that's coming soon.
And For the always listening, just install the Open Mic+ app. I love this! I can just speak to my phone and command it without touching (insert Arrested Development reference here)! Some users, myself included, have noticed inconsistent results. But it is cool when it does work. Telling your phone to remind you of something, while its 10 feet away from you is amazing.
Both apps are free, so try them out!
Open mic: https://play.google.com/store/apps/det…
Active Notifications: https://play.google.com/store/apps/det…