Android App Engine Client · Recently I wrote a scary App-Engine back end for an Android app. I wanted it to be secure, which should be easy because Androids have Google accounts and App Engine knows about those. I got it to work, but the process irritated me enough that I decided to package it up as a public service. So now there’s a little open-source library called App Engine REST Client. It offers GET and POST methods, includes an Authenticator class, and tries to be as simple as possible to use ... [4 comments]