The "Run Project" action, runs a debug build and installs in default connected emulator/device.
I usually use some custom Ant tasks that
-build in release mode
-Find all connected devices
-Install the signed apk in all connected devices
-Find the main activity on manifest
-Run the main activity in all connected devices
It would come handy to set in Netbeans NBAndroid settings the Ant task to execute when pressing "Run project"