A Bitmessage client for Android.
Please be aware that due to the protocol, sending messages might suck your battery dry. Also, it causes a lot of traffic and may use up your data plan rather quickly. Use at your own peril.
Abit uses the Jabit Bitmessage library.
You'll need at least Android 4.4 KitKat. Due to the Proof of Work that comes with the protocol you might want as fast a processor and as many cores as you can get.