Google App Engine Admin Console

Accessible at http://appengine.google.com/. Sign into App Engine using your Google account. To create a new application, click "Create an Application" button. Follow the instruction to register an application ID, a name unique to this application. If you elect to use the free appspot.com domain name, the full URL for your application will be http://yourapplicationid.appspot.com/.

You can also purchase a top level domain for your application or use one that you have already registered.

Edit app.yaml to change the value of application settings. Use appcfg.py to upload your application:

appcfg update accessiblebrain

http://code.google.com/appengine/docs/theadminconsole.html