Install the FINAL FANTASY III apk
Copy 'com.square_enix.android_googleplay.FFIII_GP' folder to 'Sdcard/Android/Obb'
Launch the Game

Updated: September 4, 2013
Current Version: 1.0.7

zippy : http://dl.apkpro.net/e
devhost: http://dl.apkpro.net/f
fileswap: http://dl.apkpro.net/g