A quick google led me to this (https://github.com/svijee/taskwarrior-androidapp)...

lnteveryday on March 17, 2014 | parent | context | favorite | on: Doing: command line tool for keeping track of what...

A quick google led me to this (https://github.com/svijee/taskwarrior-androidapp). I did not develop it and, unfortunately have an iphone 4 for the next few months. It looks fairly promising though (looks like it is still being developed).