This app is in beta. It is updated in my free time, and as a result, may not be entirely the best as far as functionality goes. If you want, join the Google+ group and submit feedback there. Doing so will allow you to opt in to bleeding edge releases that will rapidly change, add, or remove features.
Features:
1. Works with all Minecraft server installations that support RCON.
2. Designed with Android 4.x (Ice Cream Sandwich, Jelly Bean, and KitKat) in mind.
3. Supports running quick actions on players.
4. Supports running console commands directly on the server.
Note: Due to the way the RCON protocol works, I cannot currently provide a real-time chat client A workaround is in progress for the future.
Note 2: Similarly, if you use a Bukkit plugin that changes the names of players on your player list, you may find that quick actions do not function. This will be resolved in the future.
Google Play Testing Info:
community https://plus.google.com/communities/110529160706590240343
Opt-in: https://play.google.com/apps/testing/me.shanked.nicatronTg.minercon