First, Plaphoons for Android did not win a prize of the Vodafone Smart Accessibility Award, but Help Talk did. Enough said about that.
Second and more important, the source code has been made available at github just right now - under GPL. Please see and checkout from https://github.com/openintents/plaphoons-for-android
The code contains a sample tableau but also contains the possiblity to read .pla files from the sdcard. In the next weeks, we will improve the usablity for choosing the tableau.