With the Moto X announcement, and the open mic function on the device.
I've found something similar for our Devices! I've tested it and it works flawlessly with the Note2.
I didn't set to listen when screen is off (experimental). But I did test it and its a little slow/buggy!!
Google Now, Everwhere.
As featured on SlashGear, Android Community, Android Spin, dotTech, AndroidInt'l, and more!
With Open Mic+ for Google Now, access all the commands from anywhere on your phone. Simply say "Okay Google" or wave your hand in front of the screen. Screen on, screen off Google Now will be ready to listen.
WHAT DOES THIS MEAN?
Google Now becomes more conversational as after a search just say Okay Google to start a new one. And even better get the answers to your questions while your hands are tied, or when you're on the couch, or in the car.
TOMORROW'S FEATURES TODAY
Everybody's talking about the new Open Mic features for the Moto X, but now any phone that is running Jelly Bean or higher can have the same experience.
Open Mic+ will run in the background and can be configured to start at boot so that it truly becomes part of the phone.
Truly automate your device by combining the endless command list of Tasker with the ease of access of Open Mic!
Open Mic+ uses offline voice recognition which means less data usage and faster results.
We saved the best for last. Open Mic+ has no ads, no in-app purchases, and is free to download. So why are you still reading this? Try Open Mic+ for Google Now.
Here's the Play Store Link:Open Mic+ Google Now
I GUESS THE PLAY STORE TOOK THIS DOWN! BUT YOU CAN FIND IT HERE: http://openmic.rsenapps.com