There's no ginger island in Android version or what's happening?
Ginger Island is part of the 1.5 update which, sadly, mobile platforms have been waiting for for a while now. There were difficulties getting it made by the folks porting it, then they got let go and we later heard about legal/business concerns which further slowed things down (I expect it to be the fact that Chucklefish was the publisher and now ConcernedApe is self-publishing).
It is definitely on the way, and we're all looking forward to it. We've been told it'll be before the end of the year, but not an exact date yet.