RemoteBukkit Android Client descripción
RemoteBukkit is a basic app that allows you to easily access your Minecraft server console and perform commands on the move!
It requires the server side plugin RemoteBukkit setup and working on your bukkit before you can use this app. Once it's setup, just login with the configured login details.
You can find the plugin here http://dev.bukkit.org/bukkit-plugins/remotebukkit/ -- thanks go to escortkeel for making the plugin.