The CyanogenMod team has just added a new feature to their nightly builds called “Heads up” which is very similar to Paranoid Android’s “Hover” feature. It allows you to display floating notifications over your current activity and allows you to interact with them (similar to how they are on iOS 8)
The feature does bring some improvements over the one available on Paranoid Android as you can enable a Do not disturb mode which allows you to not receive these notifications when using certain apps or in games. If you want to try it out, you can download it over here
