Lionel has released the Bluetooth application to use with an Android phone. It is available at the Google Play Store. You need to search under Lion Chief Plus though not FlyerChief. FlyerChief and LionChief Plus is the same software.
Remember that your engine has to be Bluetooth equipped as early FlyerChief engines don't have it.
I have downloaded it to my phone but not tested it yet. The download was easy.
This application is FREE.