I must admit that I only eveloped the simple "Hello World" reference module.

Although there was some support "in principle" in the Framework for this, there were quite a few places where minor changes were neccessary and the changes made to support this were quite late in the development cycle.  I will investigate the "Edit" case and get back to you.

With regard to Localization - there are two ways this can be acheived, although again I haven't actually tested this to make sure it works.

1. Use the "SharedResources.resx" file support - Any module can use a Shared Resources file located in the modules App_LocalResources folder.  It is automatically searched if the key cannot be found in the specified Local Resource File
2. Override OnInit and set the LocalResourceFile property to anything you want - the requirement for the file to have the same name as the source file is just a default setting IF the property itself is not set.