Hi Eugene,

I'm not from Google, but I think if we use the general framework of Intents and IntentReceivers to connect your application to an Android service that connects to an external TTS, this should give full credit to your application. Plus, the Android service could be easily exchanged by a Morse flasher, a Braille reader, or a translator, ... and your application could work without modification, once a native TTS or SR is available on Android (which may or may not have been programmed in Java).

If you are interested in such a possibility, have a look at my other post below.