ZooKeeperAndroid is a full android port of ZooKeeper 3.4.6. All source codes of ZooKeeper are retained except for some MBean(s) and security function(s) not available in Android environment.
As many people has mentioned before, ZooKeeper should normally be used in INERTNAL network environment rather than Internet. Also, facilities like Curator should be seriously taken into considerations to handle situations such as connection lose etc. It is reasonable that Apache says that Guava is to Java what Curator is to ZooKeeper.
However, judging from what I have experienced since I used the Android port version of ZooKeeper(about FOUR miserable month, among which I struggled to handle tricky unrecoverable connection lose), I really DO NOT think using ZooKeeper in Android environment is a good idea.