Here is the apk download for the Heads Up Notifications which will be a feature in the next version of Android :
http://phandroid.com/2014/06/28/android-l-heads-up-notifications-google-play/
Sent from my Samsung Galaxy S5
http://phandroid.com/2014/06/28/android-l-heads-up-notifications-google-play/
Sent from my Samsung Galaxy S5