I've had Lollipop (Android 5) on my phone for about ten days now, so it seemed like a good time to report back on my feelings and experiences with this new, 'material design' laden Operating System.
Notifications: you probably love them or hate them. I like them when they are useful to me, and this is something that the OpenBack SDK attempts to solve. It offers a framework for you to make your in-app notifications more than annoying notices, but tailoring them to users contexts and allowing them to do more with notifications.