I try with a concrete example.
I have created a software that convert a C2 project in an Android App ready to be tested in any Android device, without use PhoneGap, AppMobi or the C2 exporters.
Now, I would like to have a new button in the C2 menu that launch my software. When my software starts it detects that in C2 there is an opened project, named "MyGame" and that all files are in "c:\c2projects\MyGame\". So my software can automatically takes the necessary files from "c:\c2projects\MyGame\" and prepare the test Android App. All this directly from C2.
EXAMPLE (menu customization)
<img src="http://img404.imageshack.us/img404/2087/samplea.jpg" border="0" />
EXAMPLE (the launched software)
<img src="http://img210.imageshack.us/img210/1277/sample2v.jpg" border="0" />