The new Oracle APEX Listener 2.0 Early Adopter is publicly available now.
If you compare it to the current production version these are the most changed or new features.
APEX Listener 1.x: the configuration screen to tell the listener in which database APEX is installed
|Command line configuration of the APEX Listener 2.x|
or through SQL Developer 3.2 or higher (currently not publicly released yet)
|Configuration through SQL Developer 3.2|
Another new feature is that you can route multiple url's to different APEX applications.
Resource Profiles (aka RESTful Services)
APEX Listener 1.x; you define Resource Templates through the web interface
APEX Listener 2.x; you can now configure the RESTful Services through a patched APEX 4.1.1 or native in APEX 4.2. The following screenshot shows how it looks like in a patched APEX 4.1.1 version.
New in the APEX Listener 2.x is RESTful OAuth 2.0 integration.
More configuration options.
Integration of ICAP virus scanner, so when a file gets uploaded to your database, even before it hits your database it can be scanned.