It seems there is no equivalent of Python App Engine\'s _ah/admin for the Java implementation of Google App Engine.
Is there a manual way I can browse the datastore?
In the newest versions of the SDK (1.7.6+) the admin part of the dev server comes with it changed its location
Analyzing the server output logs we can see that it is accessible at:
http://localhost:8000
And the Datastore viewer:
http://localhost:8000/datastore
Looks pretty neat - according to google's new design guidlines.