I've updated my blogs for Cordova 2.x.x.
Below is a summary of the differences:
I've renamed a number of the files in the Plugin to make versioning a lot easier going forward.
Previously we registered the plugin within res\xml\plugins.xml.
Within Cordova 2.x.x, this is now res\xml\config.xml
The registering of a plugin is different under Cordova 2.x.x, and now needs to use cordova.define.
See myService-2.0.0.js as an example of how to do this.
Under Cordova 1.8.1 the service is called (from the html) via window.plugins.myService.method(xxx).
Under Cordova 2.x.x you can drop the window.plugins so that it is just myService.method(xxx).