GNU Smalltalk on Android

I crosscompiled GNU Smalltalk 3.2.4 with the Android NDK (r8).
Because interaction with GST on Android was complicated (couldn't read stdout/ stderr reliable), i decided to use the Android Scripting Framework.
So if you want to try it, first you need to install SL4A. You should install the sl4a_r5.apk (not r4!)
After installing SL4A, you can download and install smalltall_for_android.apk. Remember to allow installation from untrusted sources.
I tested "smalltalk for android" with an android virtual device running Android 2.3.3. The Screenshot was made on my Samsung Galaxy S3.
Currently there is no binding for the SL4A API - you can execute Smalltalk code, but there is no interaction with the Android API.
So, if anyone would like to help implementing the JSON-RPC bridge to SL4A - that would be really great.
The Source is on github.