title: BaaS for Google App Engine/J
body: <p>There are lots of Backend-as-a-Server (BaaS) that are open source like:</p>
  
  <ul>
  <li>Usergrid</li>
  <li>BaasBox</li>
  </ul>
  
  <p>However I have not seen any that is made with GAE/J. I tried doing a quick port of Usergrid as it is the most mature open source BaaS I see. however it is very dependent on Cassandra and Hazelcast as far as my porting is concerned. </p>
  
  <p>Are there any BaaS made for the GAE platform?</p>