""The second new feature is that we've enabled 'wildcard' domains for App Engine apps serving off appspot.com. What this means is that you can now create multiple subdomains for your App Engine app, and have them all served by the same application. Thus, your users can access 'myapp.appspot.com', or 'developer.myapp.appspot.com', or 'news.myapp.appspot.com', with your app deciding how to handle each request. No setup is required to use the wildcard domains - simply configure your app to serve up requests to these subdomains however you wish. You can detect which domain a user requested by looking at the 'Host' header in the incoming request - for example, in Python's webapp framework you can access this with self.request.headers['Host'].""
""The second new feature is that we've enabled 'wildcard' domains for App Engine apps serving off appspot.com. What this means is that you can now create multiple subdomains for your App Engine app, and have them all served by the same application. Thus, your users can access 'myapp.appspot.com', or 'developer.myapp.appspot.com', or 'news.myapp.appspot.com', with your app deciding how to handle each request. No setup is required to use the wildcard domains - simply configure your app to serve up requests to these subdomains however you wish. You can detect which domain a user requested by looking at the 'Host' header in the incoming request - for example, in Python's webapp framework you can access this with self.request.headers['Host'].""