Pocketsphinx is a great alternative to a closed-source vendor SDK's due to it's open source nature, extensibility and features. If you are looking to impelment a speech application on Android, feel free to try Pocketsphinx. To get started, you can use existing applications like Inimesed
It's a great application to select contacts, you can install it on your device with a single click.
The sources and related things are available on the Github. Many thanks to Kaarel Kaljurand for his great software!
If you know some other applications using CMUSphinx, feel free to share!