To reproduce problem #1:
1) Create new project.
2) Create "GWT sample application" via GWT menu.
4) Click on "Click me" button in app window.
5) Receive error: "Deferred binding failed for 'app.client.appService' (did you forget to inherit a required module?)"
It appears that RPC with server code is no longer working in hosted mode.
After building a GWT app, I can no longer locate the generated files. I used to be able to load the GWT application directly into a browers, but can no longer do so since the generated files do not seem to be kept around any longer.