We run our Android unit tests on a Nexus S and want to plug in another one to run more than one test build at once. We've not discovered a way to enable two executors which will properly distribute the test builds.

The current error message is:

• waiting for device -
  error: more than one device and emulator

We'd have to specify the free device via "adb -s" but not find a way to properly automate this, except writing our own bash scripts. An official way to do this would greatly help us.