Hi I'm Kris I'm the one who has been working on getting the android app back up and running.
So the issue with the Feathercoin android wallet is that is does not have NeoScrypt in the java feathercoinj project so it is rejecting blocks after the hard fork.
So there are three things that needed doing.
1.) First get NeoScrypt which is a c program working with Java via jni.
2.) Integrate the jni code into feathercoinj (with multi platform support)
3.) Rebuild the android wallet with the updated feathercoinj library. And update the code to hash using NeoScrypt after the fork block.
So far I have managed to get number one working. Its taken a while as I know Java but both JNI and c are new areas for me so I have had to learn as I go.it still requires some automated tests bit I think they would be better placed inside feathercoinj.
Kris