Looks good! Just make sure it's open source or source available :)
There is https://play.google.com/store/apps/details?id=de.bitsharesmunich.smartcoinswallet that I found on https://bitcointalk.org/index.php?topic=1949828.0 but it doesn't look as polished as yours looks and has some issues.
It's very good to have many source available wallet options!