I've been using this
app. It's clean, minimalistic and most of all aesthetically pleasing compared to Active Notifications and Omni's implemetation IMO. In addition, it doesn't eat up much battery. It's still alpha and pretty much barebones at the moment but the developer is nice and he listens. He showed a preview of what's to come in future updates and it's awesome. Sign up at his G+ community page
and give it a try.
Just wanted to share because I'm really loving my experience with it so far.
If this is a duplicate post, mods kindly close this thread..