We offer two different Client SDKs for Android:
The Photon-Android Client SDK and the Photon-AndroidNDK Client SDK. the first of these two is for developers, who want to develop their game in Java, the second one for those, who want to develop it in C++.
You should choose between them depending on the language, which you prefer to use for whatever reason.
These to SDKs are totally unrelated and the recent AndroidNDK Client release of course is not a preview for the upcoming Java client SDK release.
We support Java for Android for more than a year now and the Client SDK can in gerneral be considered stable. However the LoadBalancing client API has just been added to it recently and we are in the final steps of working on it and will release a new Android Java client SDK in the next days.
The Support for C++ with the AndroidNDK has just been added this month and its declared a PreAlpha release for now, as we are still working on full support of the NDK platform. However the current release for NDK already comes with full support for LoadBalancing (which is due to the fact, that it shares the according sourcecode with the other C++ Client SDKs for other platforms).
Exit Games - Client Engineer