Already you can enjoy pretty awesome features of Google now, but not everything is available .Commandr is an interesting app which activates new voice commands to use on Google Now. Once you setup Commandr, it will always be accessible from Google Now and will only run when needed. It won't slow down your phone or your boot.
Command List (so far): - Turn On/Off Wifi - Turn On/Off Bluetooth - Turn On/Off GPS (for some phones) - Pause Music - Resume Music - Next Song - Previous Song - note (adds to note-taking app) - Any Tasker command you can dream of!